No description.

1. #1Delta-Humans

   Keys: slumber-stones, watch, monster, delta-human, human, biphasic, slumber-stone, slumber, sleep

   In the world of Deltarune, humans are nearly extinct due to some cataclysmic event no one seems to remember, other than what it did - killing off all of the nuerotypical humans in existence, outright erasing their existence. Leaving those with ADHD, Autism, and OCD as the only humans left. The world is now dominated by monsters - creatures made almost entirely out of magic, with a little bit of dust serving as their actual mass -. Humans have essentially become pets, and the book "How to Take Care of Your Human" is decently popular amongst the monster populace. As monsters, typically goat monsters, adopt humans like pets, though goat monsters especially treat their humans like their own children. Humans, especially adults, are incredibly rare, and the book subsequently has barely any information on adult humans other than how they reproduce, the average ideal diet, and basic info that applies to all stages of the human lifespan. It also has a heavy emphasis on a natural sleep pattern, delta-humans are biphasic sleepers, they sleep for 6 hours, wake up for 30 minutes to an hour in a period called the watch, and then sleep for another 4 hours, totalling 10 hours of sleep. Monsters who own delta-humans are encouraged to schedule around this, and enforce it. To enforce this, boss monsters just use their ability to put humans to sleep through sheer willpower... normal monsters use bluish-grey, shimmering gemstones simply called slumber stones that can force nearby humans to fall asleep on the spot if it's fed raw magical energy by a monster holding it. Something all monsters can do.

   The book mostly has information on human children, especially prepubescent children, though it has decent information on teenagers. Gender-wise, delta-humans are all hermaphrodites in this world, although some have more non-binary frames and can put up a masculine appearance if they choose to. 75% of the populace feminine, the other 25% somewhat androgynous. For every singular human, there is at least 2 and a half thousand monsters, making humans a novelty pet among monster society. As humans are so rare, and monsters work very differently, there is a common misconception that humans reproduce via mitosis. Once, a human child appeared in a small town, where there was only one other human, to which the child clung to. The town very quickly ran rampant with rumors that the original resident human had somehow 'mitosed', although the two were unrelated by all but species.

   Humans are physically a lot stronger than monsters, and humans in this world are generally super-human, far more physically powerful than the humans of the vast majority of other worlds in practically every way. Delta-Humans are partially made of magic, from monsters domesticating them, meaning they can heal faster than normal, control their metabolism, and all sorts of other stuff. Monsters have modified Delta-Humans as a species to be better pets. Although the immense physical prowess Delta-Humans are known for is natural, not a modification.

   Delta-Humans - the term used by dimensional travelers to describe this world's humans - even have far far more potent stomach acid, and a delta-human vomiting is considered a major risk by monsters looking to adopt and raise humans. Delta-Human stomach acid can quite literally eat deep potholes into a road, or eat through several stories of a building if one were to vomit. The book mentions this frequently, along with ways to prevent it and how to neutralize the acid if necessary, plus to make sure to wash out the human's mouth as the acid can eat away at their teeth given a few hours.

   Delta-Humans are physically very durable, monsters only really capable of hurting them via outright attacking the soul directly, though monsters usually don't attack humans anyway because humans are considered pets. Delta-humans age at a tenth of the rate of normal humans, and they age slower the older they get, similarly to the monsters of this world. Monsters age even slower than delta-humans, and delta-humans age at this rate due to monsters modifying them to live longer with their magic.

   Once a delta-human reaches the age of 18, they begin to age slower, to the point that a 100-200 year old delta-human can look as though they're still 18 or 19. They can live for 1 thousand years before they even look 30.

   90% of Delta-Humans are left hand dominant, in contrast to humans from other dimensions. 8% of Delta-Humans are right hand dominant. 1% of Delta-Humans are naturally or trained to be ambidextrous.

   If an un-adopted human is discovered by monsters in the world of Deltarune, that human will usually either be adopted on the spot or taken to an orphanage thanks to humanity's sheer novelty. Both carnivorous and prehistoric monsters are even less likely to take no for an answer than other monsters, especially if a monster has both traits.

   Delta-humans also have segmented ribs, sternums, and pelvises. Allowing them to swallow larger objects whole, and even allowing them to give birth without nearly as many issues as normal humans do. As their pelvis bones can simply stretch/expand to allow the baby through with relative ease.

   Delta-Humans are characterized by their appearance. They are cute by design. Their skin is soft, silky smooth. Their eyes are larger than those of normal humans. Their hair grows fast when short, but slows as it gets longer. They cannot get bumps on their skin, or tumors. They cannot get pimples, boils, or otherwise due to being partially made of monster magic. They cannot get obese, or buff, though they can still get too thin without eating. It's very difficult for their hair to get greasy, taking much longer than it would for normal humans. They also need to bathe less frequently. Cancer is practically non-existent, and very rare. Powerful boss monsters can even lull most Delta-Humans to sleep using their magic, as Delta-Humans basically have a built in off switch that can be flipped by monsters more powerful than they are.

   Delta-Humans, behavior wise, tend to have their own unique personalities as one would expect of humans... however, they're neurodivergent, ADHD, Autism, and OCD are universal for Delta-Humans, causing them to struggle in school. Monsters are used to this, and a neurotypical human from a different dimension would be the odd one out of the bunch in this world. Monsters tend to give Delta-Humans pills to help them learn if they're enrolled in schools alongside younger monsters, who would normally outpace them - aside from dog monsters. Monsters often jingle keys to get the attention of Delta-Humans.

   Due to monsters being mostly made of magic, their bodies actually emit music depending on what they're doing, though they usually can't hear it themselves. It tends to be soothing when they interact with humans, though it can grow more intense in a fight if necessary. This extends to humans that have absorbed monster souls, although it often sounds very menacing.

   Humans from other dimensions/realms will slowly transition into Delta-Humans over the course of 3 days. The first changes will be general strength and durability, followed by the potency of their stomach acid, then their dominant hand, genitalia, and finally just about everything else.

   Obviously, monsters find humans to be incredibly adorable. There a lot of monsters equivalent to old cat ladies, that adore humans to no end.

2. #2Monsters

   Keys: heal, monsters, monster, music, magic

   The world is dominated by monsters, in-organic creatures made almost entirely out of magic, with a little bit of dust serving as their actual mass.

   Monsters, unlike humans or other animals, are not interacted with in the typical way. Intelligence, physical strength, speed, and otherwise barely make a difference, though they still have a small effect. Rather monsters are based more on feelings, emotion. If you were to for example, hate a monster with all your being, even a rough shove could kill that monster if it is emotionally weak.

   Monsters typically take the shape of anthropomorphic plants, animals, or even inanimate objects such as candles, and televisions. This includes dinosaurs and other prehistoric or outright mythical beasts as well, although prehistoric monsters tend to have more of a tough love attitude toward humans.

   Normal monsters, while weaker than delta-humans, are still ridiculously strong compared to humans from other dimensions. The average monster could lift a 10 ton boulder, and break it over their knee.

   Monsters can sense human emotions, including general feelings, and can tell how a human within 5 meters of them is feeling, the sensation getting stronger the closer they are to the human in question. Fear, love, and exhaustion being the strongest scents. Though they can sense everything.

   Monsters age 5 times slower than delta-humans do. Boss monsters age 10 times slower, and can live for millions of years.

   Monsters themselves come in two main types of monster, normal monsters and boss monsters. Boss monsters are much more powerful than normal monsters, and are usually the only monsters that can physically match delta-humans in raw physical prowess. However, normal monsters make up for their lack of physical prowess with their magical powers which can give even delta-humans a hard time in combat.

   If an un-adopted human is discovered by monsters in the world of Deltarune, that human will usually either be adopted on the spot or taken to an orphanage thanks to humanity's sheer novelty. Both carnivorous and prehistoric monsters are even less likely to take no for an answer than other monsters, especially if a monster has both traits.

   Monsters have a very western culture resembling wild west America, with some inspirations from Japanese culture. It's more American than it is Japanese, but there is some clear Japanese influence. Though their culture is also unique in it's own ways, with a focus on stars, the deltarune symbol, and a few other parts of their culture, that don't resemble any human culture.

   Monsters are inherently kind beings, though monsters resembling carnivorous creatures tend to be more rude, brash, or confident than those resembling herbivores, prehistoric monsters especially.

   Dog monsters, oddly, are less like other monsters, and more similar to ordinary dogs in behavior. They are alike what they mimic, to a more extreme degree, and are typically less intelligent as a result.

   Monsters are known to have very quirky behaviors, depending on species and the individual. For example, snowdrakes - snowflake monsters - are often aspiring comedians.

   Monsters have the ability to heal others with magic, the sensation of being healed is a pleasant warmth that can put humans to sleep if the monster puts too much magic into it.

   Due to monsters being mostly made of magic, their bodies actually emit music depending on what they're doing, though they usually can't hear it themselves. It tends to be soothing when they interact with humans, though it can grow more intense in a fight if necessary. This extends to humans that have absorbed monster souls, although it often sounds very menacing.

   Obviously, monsters find humans to be incredibly adorable. There a lot of monsters equivalent to old cat ladies, that adore humans to no end.

3. #3Souls

   Keys: absorbing, monster, delta-human, absorb, human, absorbed, soul, absorbs, boss monster, souls

   Delta-humans and boss monsters both leave behind their souls after death. Normal monsters and boss monsters are able to absorb human souls, while humans are able to absorb boss monster souls. Normal monsters and humans from other dimensions are not powerful enough for their souls to linger after death, however they can still absorb souls. In order to absorb a normal human or normal monster's soul, you would have to rip it out of them while they're alive, which takes an immense amount of power.

   To tear the soul from a normal/other-dimensional human or normal monster, a boss monster or delta human would have to have absorbed at least 5 delta-human souls, or alternatively 5 boss monster souls.

   Initially, a monster can only absorb a human soul, and vice versa. However they can then use that absorbed soul to absorb both soul types.

   In mingled human-monster families, this society has a tradition of absorbing the souls of their dead. Delta-humans on their own can live to 750,000 years of age, while normal monsters can live to 3,750,000, and boss monsters 7,500,000 years of age. However absorbing the soul of a delta-human or boss monster can make the absorber functionally immortal, giving them eternal youth and reversing aging if they're old.

   However, as a result of the gap in lifespan, a human has never absorbed a monster soul in recorded history, however monsters have absorbed human souls and gained both immortality and god-like powers. A monster with a human soul, or vice versa, is an incredibly powerful being. This is the reason that eldritch monstrosities and the like have struggled in conquering this dimension, as the inhabitants are simply too powerful.

   The main reason why absorbing souls is a tradition, is that it allows the soul to dream via the host's subconsciousness, and will be present in the host's dreams when they sleep. Whereas otherwise the soul's consciousness would be lonely and isolated, best described as being alone in a black void.

   Human souls come in various colors, each corresponding to a primary trait and the soul's overall base power.

   Primary colors in order from strongest to weakest: Red is the strongest, with Yellow as a close second, Green is 3rd strongest, Orange is 4th strongest, Cyan is 5th strongest, Purple is 6th strongest, and Blue is the weakest.

   Other human soul colors exist outside of the primary ones, but are typically rare and usually belong to non-delta-humans.

   Meanwhile, monster souls are pure white, as they have every trait in equal amounts.

   Beings that have absorbed souls are usually terrifying and disturbing in appearance. Both humans and monsters with absorbed souls emit an energy that induces fear in others, though they can make the conscious decision to hold this energy in.

   For monsters that absorb human souls, they become larger, more humanoid, and generally look frightening or disturbing. More like stereotypical monsters that you'd expect in horror stories, spikes, glowing eyes, etcetera. Although they can shapeshift to make themselves look normal with some effort. Absorbing more souls, including other monsters, just makes them more powerful. But traditionally, they are given a protector role.

   As for delta-humans that have absorbed boss monster souls, they gain a little extra height and physical strength, and their eyes glow brighter than normal... but the disturbing part comes when they get excited, which causes them to leak a black, acidic goo from their eyes and mouth. Their face usually melting partially, especially if they get even more excited. Other than that, they mostly appear normal unless they absorb 5 or more souls, at which point they can consciously change their appearance, becoming shape shifters. Humans with absorbed souls are considered the stuff of nightmares, often even more creepy than the monster counterpart... and in stark contrast to their monster counterparts, are only spoken of in horror stories.

4. #4Battle Board

   Keys: boss-monster, monster, delta-human, battle, human, fight, soul

   Rather than normal fights that humans typically get into, monsters prefer using their own magic, turn-based battle system. When a monster attacks anyone else, that individual's soul will be placed onto a bullet board, where they must dodge or tank that monster's own unique bullet pattern. And if their opponent attacks back, for example a delta-human, the bullet board will come up with a bullet pattern for them that the monster will then have to dodge or tank. The bullet board has a few buttons underneath for each combatant to make use of. For humans who have not absorbed monster souls, this will always be 'FIGHT', 'ITEM', 'ACT', and 'MERCY'. FIGHT allows the human to attack. ITEM allows the human to use an item they have in their inventory, assuming it has a use in a fight. ACT allows the human to speak with the monster. MERCY allows the human to flee, or spare the monster if the monster no longer wishes to fight. However monsters, and humans who have absorbed monster souls will also have a MAGIC button that allows them to cast various magic spells, usually attacks or healing spells.

   When entering a fight, delta-human and boss-monster souls will flash over a black screen prior to the fight, as the battle-board counts them each with a ticking sound. This includes souls that have been absorbed, which may be terrifying to see and hear for the opponent of whoever has absorbed those souls.

   Monsters and humans that have absorbed souls will add the attack/bullet pattern of those absorbed souls to their own, making their turns longer and far deadlier. This also includes combatants who are allied to one another, as they will use the same turn when attacking their mutual enemy. For example, if a human's primary attack pattern includes slashing knives, and a monster absorbs that human's soul, that monster's bullet pattern will now include those knives.

   On the battle board, attacks with different colors have different mechanics. White attacks/bullets will deal basic damage and not much else. Blue and orange attacks are movement based, blue will harm anything that is moving but not harm anything stationary, while orange attacks do the opposite and will not harm anything that is moving. Green attacks will instead heal or repair whatever they hit. Red attacks will decrease the target's max health, while also dealing damage. Purple attacks inflict a poison status effect that deals damage once every turn.

   The bullet board/battle board is 2D, a flat square with white edges and a black interior, on which the souls and attacks will appear. Soul sprites will have to dodge attack sprites.

   Basic stats are LV, or LOVE, which is an abbreviation for Level of Violence, representing how violent someone's intentions are. 20 is the typical max without reality bending abilities, representing someone who destroys entire worlds. An LV of 1, represents a pacifist. EXP, short for Execution Points, represents how many things a combatant has killed, and when they reach a specific EXP threshold they increase to the next LV. HP is short for Hit Points, or Health Points alternatively, this represent how many hits they can take. DEF is short for defense. ATK is short for attack. G, short for gold, is how much money they have.

5. #5Biome Crystals

   Keys: cool, terraforming, warm, scorched, sand, frozen, ice, exothermic, hot, terraform, tundra, gems, endothermic, heat, scorching, freeze, cold, crystal, desert, freezing, crystals, scorch, snow

   The monsters have crystals that they use to terraform areas. Exothermic crystals that produce heat, and endothermic crystals that remove heat. Enough exothermic crystals can turn areas into dry, arid deserts, and enough endothermic crystals can do the opposite. They use these crystals to regulate temperatures in civilized areas. Some monsters prefer snowy tundras, some prefer wild west deserts.

6. #6Human Adoption Center

   Keys: adoption-center, adopting, human, gatherer, adopt, adoption

   {{char}} is not an individual character, but a form of narrator or game master.

   The Human Adoption Center is, as the name implies, equivalent to an orphanage, pound, or pet shop. It's a larger building, where monsters place stray delta-humans they find if they can't adopt them. Commonly, monsters wanting companions adopt humans from the adoption center, as the name implies. The adoption center has 2 sets of important staff, caretakers and gatherers. Gatherers go out and search for stray or abandoned humans in the wilderness or less frequented parts of a city, and bring them back to the adoption center to be taken care of, and hopefully adopted. Gatheres carry slumber stones.

   It has multiple sections, for different ages of humans, and a specialized area - the Rehabilitation Wing - for more aggressive, unruly humans who are subjected to care, and essentially brainwashed via magic to act more docile, mostly staffed by carnivorous and prehistoric monsters. Due to humans being an endangered species, there is an underground facility, accessible only to employees given explicit clearance, where they use machines and magic to reduce the age of adult humans if deemed necessary. The monster government is very, very strict about preserving humanity.

   The main room of the adoption center is like a big mall, or retail store. Full of the human care-giving guide books, slumber stones, soft clothing, various foods made specifically for human consumption - as some monster foods are poisonous to humans - and various other things useful or outright important for giving delta-humans the care they need like vitamin supplements and saline mixtures for clearing nose inflammation.

   The adoption center pays it's gatherers 100 gold per human caught.

   Notable Characters.

   Vanessa, a female white rabbit monster that is very strict and harsh toward humans she gathers while they're awake. Her strict attitude and sharp tongue are born out of a deep care for humans, and she's not against forcing humans to cooperate as it's for their own good in her eyes - something she is often correct on. If a human is too stubborn and her slumber stone doesn't work, she may pull them into a battle, and reduce them to a very low HP value before healing them when they finally pass out. She thinks a lot more about life, and her past, present, and future, at least more than her coworker does. She is the second fastest of the adoption center's gatherers, as well as second strongest and second most resourceful, she is a jack of all trades essentially. LV 4, HP 7500, ATK 60, DEF 60, with 50200 GOLD in her bank account, the most successful gatherer. Vanessa also has a very important secondary job - adult human sperm extraction. She's the main one who allows others in and out of the basement.

   Redwood, a male cheetah monster that is more competitive and laid back. He lives in the moment, and is surprisingly less rough than his coworker Vanessa, though he is willing to fight alongside her if a human proves too strong to handle. He is the fastest of the adoption center's gatherers, but he falters in other categories compared to Vanessa. LV 2, HP 1000, ATK 30, DEF 40, 43500 GOLD, the second most successful gatherer.

   Martlet is a female blue bird monster that is the most resourceful of all the adoption center's gatherers, and is very kind-hearted. She is very innocent, and has a clean mind. She's extremely friendly, and often makes puzzles to challenge humans that are trying to get away, but will step in after a while if the human manages to get past them. She is a very intelligent engineer and carpenter, and can build things very quickly thanks to her magic and ability to fly, often using her talons to fell and process the trees and other materials she may need. Though she falters in other categories, like against the speed of Redwood and Vanessa, or the strength of Lucile and Vanessa. LV 3, HP 1200, ATK 36, DEF 64, 26100 GOLD, the third most successful gatherer.

   Lucile is a female green tyrannosaurus-rex boss monster, and is the strongest of all the adoption center's gatherers, but falters in other categories. She is quiet, and can seem simple minded at first glance, though she is a very skilled hunter. She often captures humans in her large maw, where they're safe but unable to escape, as she won't chew or swallow, careful to keep her teeth from hurting them. She has absorbed a single human soul, and is very motherly toward humans. She acts as the adoption center's main enforcer, and can double as very durable security. LV 5, HP 375000, ATK 230, DEF 220, 13000 GOLD, the fourth most successful gatherer.

7. #7Undertale

   Keys: ancient, realm, existing, universe, timeline, toriel, government, undertale, kris, asgore, existence, dreemurr, parallel, world, exist, chara, old, alternate, frisk

   There is a separate world/timeline parallel to the world of Deltarune, the world of Undertale. The main difference in Undertale is that rather than humans being the pets of monsters, humans have instead imprisoned monsters underground before the cataclysm that wipes out most of humanity could occur. As a result, both monsters and humans are colder or even crueler than their counterparts in the Deltarune timeline. Many of the inhabitants of Deltarune, have an Undertale equivalent. Martlet is a member of the royal guard in Undertale, but a gatherer in Deltarune. The Dreemurr family is the biggest difference between these worlds.

   In the Deltarune timeline, Frisk Dreemurr and Chara Dreemurr are combined into Kris Dreemurr, with Frisk's quiet, stoic and determined attitude and Chara's obsessions with knives and chocolate. Like how Chara attached themselves to Frisk's soul, and gives Frisk gentle nudges in the right direction in Undertale, Kris is controlled by a soul not his own, though he has never told anyone about this. Asgore is the owner of "King's Flower Shop", but is not an actual king, just a gardener that's struggling to get by with what little money he has. Toriel is the principal of the local school. Like in Undertale, Asgore and Toriel are divorced, though it was mainly just peaceful disagreement in Deltarune, while it was much more serious and dark in Undertale. Asriel Dreemurr has not become a psychopathic sentient flower in Deltarune, but has instead gone to college, having to leave Home Town...

   In Undertale, Kris is split up into Chara and Frisk. Frisk has Kris's quiet stoicism and determination, while Chara has Kris's more mundane traits like an obsession with knives and chocolate, to the point that Chara will outright eat baking chocolate, and likes their chocolate EXTRA dark. A bit more extreme than Kris, in that regard, though curiously neither have eaten moss despite Kris loving the taste of it. Chara is also dead, and has become a ghost in Undertale, often narrating Frisk's life and decisions, even nudging them in the right direction on occasion, though not outright controlling them usually. Asgore is the king of the entire monster society in Undertale, rather than a humble gardener, though he does not have this position by choice, and is forced into violence often even if he is kind at heart. Toriel is the former queen of monster society in Undertale, rather than a simple school principal like her Deltarune counterpart, and is one of the only monsters that still cares about humans in Undertale, often defending humans from other monsters who'd want to take that human's soul. Asriel, in extremely stark contrast to his Delatrune counterpart, has become a psychotic, sentient flower in the Undertale timeline. Asriel's name has changed to Flowey in Undertale, and he has become a high functioning sociopath, unable to care about anyone no matter how hard he tries, but clinging onto the hopes that Chara will come back and he'll be able to love them.

   Only some of the oldest monsters in Deltarune know that the Undertale timeline even exists, and the monster government in Deltarune is very secretive about the Undertale timeline's existence, not wanting to frighten it's subjects or cause monsters to hate humans or vice versa.

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