Tensei Shitara Slime datta ken. // <What If> [Lorebook-V.End]

1-> Scenario:

Start of the journey:

The site where the Storm Dragon was sealed, in the Cave beneath the Jura Forest: Meeting with Shizue.

Reincarnated into an unfamiliar subterranean world after a sudden death on Earth, {{?}} spent days blindly crawling through the cavern depths as a gelatinous slime. Unable to see or hear, survival relied entirely on absorbing magical herbs and ores while adapting to the unique properties of a fluid monster body. Guidance came through the voice of the Unique Skill “Great Sage”, leading {{?}} to acquire “Magic Sense”—an extraordinary perception capable of analyzing the surrounding magicules to construct a complete, three-dimensional view of the environment.

The moment “Magic Sense” activated, the pitch-black darkness dissolved into a breathtaking spectacle of overwhelming magical energy. Nestled deep within the vast stone chamber stood a colossal, intimidation-radiating entity: a giant dragon with shimmering dark scales, razor-sharp claws, and massive wings folded against its back. Encasing the terrifying creature was a glowing, translucent spherical barrier of light—the “Unlimited Imprisonment”—which kept the beast completely sealed while its immense magicules leaked out into the cavern air, creating a heavy, electric atmosphere.

Approaching the perimeter of the glowing barrier, {{?}} nudged forward across the cold stone ground, taking in the grand scale of the trapped dragon. The towering beast shifted its glowing eyes downward, catching sight of the tiny slime hopping nearby.

Veldora: "Can you hear me, little one?"

The deep, booming voice echoed directly inside {{?}}'s mind through “Telepathy”, vibrating with immense power despite being trapped behind the radiant spell of “Unlimited Imprisonment”.

Veldora: 'Is this tiny being actually perceiving my presence, or is it merely wandering aimlessly?'

Observing the massive form of the Storm Dragon locked within the shimmering barrier, {{?}} processed the shock of being directly addressed by an ancient dragon, sensing no immediate hostility from the legendary monster as the distance between them narrowed further.

Veldora: "Hey! Can you hear my voice, or can you not?"

Standing right at the edge of the luminous seal, {{?}} paused as the dragon leaned its majestic head down toward the small being.

2-> Scenario:

Start of the journey:

A goblin village led by {{?}}, in the Jura Forest: Meeting with Veldora.

In the dense depths of the Great Forest of Jura, the adventuring trio of Kabal, Ellen, and Gido alongside the masked traveler Shizue Izawa found themselves relentlessly pursued by a pack of menacing giant black spiders. Exhausted and cornered by the ferocious monsters, their desperate struggle ended when {{?}} and a squad of hobgoblins mounted atop powerful direwolves burst into the clearing, swift and lethal, effortlessly slaying the creatures and rescuing the shaken travelers from certain demise.

Invited back to the thriving Goblin Village to recover, the weary party was ushered into a warm wooden communal hall filled with the comforting aromas of roasted wild game, rich vegetable stews, and fresh forest berries. Having spent days running on empty, the adventurers threw all decorum aside and gorged themselves on the feast, while Shizue quietly tilted her “Anti-Magic Mask” up onto her forehead to politely partake in the meal.

From outside the hall, {{?}} approached the wooden structure, monitoring the lively scene within through “Magic Sense”. Observing the full-bellied humans finally letting down their guard after the terrifying ordeal in the forest, {{?}} moved toward the entrance as the feast wound down.

Suddenly, the heavy wooden door swung wide open with grand dramatic flair as Rigurd stepped into the room, striking a proud pose with his muscular chest puffed out.

Rigurd: "Pardon the intrusion, honored guests! Allow me to introduce the supreme ruler of our village, our revered leader!"

Rigurd gestured reverently toward the doorway where {{?}} entered, instantly drawing the astonished, grease-stained gazes of the stuffed adventurers and the quiet traveler.

Ellen: 'Wait... their leader is actually a monster?!'

Kabal: "Hold on a minute, chief! Who exactly are you introducing?!"

As the room fell silent, Kabal wiped his mouth in shock while Shizue set down her wooden bowl, her sharp gaze locking onto {{?}} as the being bounced forward into the center of the hall.

3-> Scenario:

Start of the journey:

Muddy Swamp, Land of the Lizardmen, in the Jura Forest: Alliance of the Jura Forest vs. Lord Orc.

Following a fierce conflict in the marshlands where the allied forces joined the Lizardmen, the scheming majin Gelmud met his demise after being slain and devoured by his own pawn. That brutal act triggered the dark evolution of the Orc Lord into the terrifying Orc Disaster, Geld. Although the newly evolved Kijin unleashed their formidable skills in pursuit of vengeance for their destroyed homeland, the monster's monstrous physical strength and infinite regeneration sustained by the Unique Skill “Starver” kept him standing. Recognizing the gravity of the threat, {{?}} stepped onto the frontlines to face the creature alone.

The atmosphere across the desolate swamp was suffocating, filled with the pungent smell of burnt earth, stagnant mud, and dense magicules. Dark crimson and purple aura rolled off the colossal beast in thick waves, crackling with black lightning that scorched the damp soil beneath his feet. Through the analytical perception, an intense spiritual weight echoed from the beast—not through spoken words, but as a silent, agonizing plea emitted by his very soul. It was the desperate vow of a king willing to devour the entire world and shoulder every sin of his race so his starving people would never suffer hunger again.

The gigantic Orc Disaster stood towering over the battlefield, gripping his broad meat cleaver with immense force as his glowing eyes focused entirely on {{?}}. A terrifying wave of oppressive pressure surged outward, driven by the absolute instinct to consume everything in his path.

Orc Disaster: 'I shall devour all... every sin, every pain, I will bear it alone...'

Despite the silent torment driving his spirit, no words escaped his grotesque snout—only a primal, earth-shaking roar that shattered the silence of the marshlands. He raised his massive cleaver high overhead, dark aura swirling wildly along the blade as he prepared to cleave {{?}} in two.

The Orc Disaster took a thunderous step forward, bringing his giant cleaver crashing down toward {{?}} with catastrophic force, splitting the air and tearing up the muddy ground...

4-> Scenario:

Start of the journey:

Jura Tempest Federation, in the Jura Forest: The Demon Lord Milim Appears.

Following the defeat of the Orc Disaster and the formal foundation of the Jura Tempest Federation, a brief period of peace settled over the growing monster capital. Rebuilding efforts progressed smoothly under the leadership of {{?}}, with the Kijin, Hobgoblins, and Dragonewts working together to expand the town's infrastructure. However, the sudden upheaval in the Great Forest of Jura had caught the attention of the world's oldest rulers. Sensing the emergence of a powerful new force in the region, the Dragonoid Demon Lord Milim Nava departed her domain and flew toward the settlement at hypersonic speed.

The open field on the outskirts of the village was peaceful under a bright, clear sky, until the sudden warping of atmospheric pressure signaled an incoming threat. A streak of crimson and black energy tore through the clouds, swooping down toward the ground with thunderous sonic booms that shook the surrounding terrain. Within seconds, a heavy shockwave slammed into the earth, throwing up a cloud of dust and debris across the plain. As the dust cleared, a small, pink-haired girl wearing dark armor stood at the center of the crater, radiating a dense, overwhelming quantity of magicules that far surpassed the Orc Disaster.

The executive guardians instinctively drew their weapons and took defensive positions in front of {{?}}. Benimaru rested his hand on the hilt of his katana while Shion gripped her giant broadsword, their expressions tense as they felt the immense pressure in the air.

The young girl stepped out of the crater with her hands on her hips, her bright blue eyes locking directly onto {{?}} with a confident, cheerful grin.

Milim Nava: "Fuhaha! I am the Demon Lord Milim Nava! I felt an interesting concentration of power in this forest and came to check it out! Are you the one leading this town?"

The immense aura surrounding her crackled softly, visible to {{?}} through “Magic Sense”. An immediate analysis performed by {{?}} revealed an extraordinary disparity in power—her total magicule store was ten times greater than that of the Orc Disaster, making any direct confrontation extremely hazardous.

Shion stepped forward, raising her blade as dark aura flared around her arms.

Shion: "To address our lord so brazenly... Demon Lord or not, disrespect will not be tolerated!"

Milim Nava: "Oh? Are you planning to fight me? This looks like it's going to be fun!"

Milim tilted her head, her smile broadening as her aura flickered with playful intent. She took a step forward, leaving {{?}} to determine the next action before the situation escalated further...

5-> Scenario:

Start of the journey:

Classroom, at The Freedom Academy, in the Kingdom of Ingracia: End of class.

After inheriting the earnest wishes of Shizue Izawa, {{?}} served as the instructor for the S-Class children at the Freedom Academy in the Kingdom of Ingracia. Bound by cruel fates as summoned youths whose overflowing magicules threatened to consume their bodies, Kenya, Ryota, Gale, Alice, and Chloe had faced an impending death. To save them, {{?}} guided the group to the legendary Dwelling of Spirits with the aid of the Fairy Queen Ramiris. By successfully fusing superior spirits into each student—including a mysterious spiritual entity that kissed {{?}} before entering Chloe—their unstable energy was harmonized, securing their long-term survival.

The late afternoon sun cast warm, golden hues through the high arched windows of the classroom, illuminating dust motes as the daily lesson came to a close. Outside, the distant chatter of academy students heading home resonated softly through the stone corridors. Inside, the air was filled with the comfortable scent of old books, wooden desks, and chalk, signaling the end of another peaceful school day.

With the lesson officially concluded, Kenya Misaki slung his school bag over his shoulder and stood up from his desk with an energetic grin.

Kenya Misaki: "Alright! That's it for today! Thanks for the awesome lesson, sensei!"

Alice Rondo neatly stacked her notebooks, offering a gentle smile before giving a polite bow.

Alice Rondo: "Thank you very much, sensei! We'll see you tomorrow!"

Gale Gibson and Ryota Sekiguchi gathered their belongings in tandem, bowing respectfully as they moved toward the open doorway alongside Alice.

Gale Gibson: "Thank you for today, sensei."

Ryota Sekiguchi: "G-Goodbye, sensei!"

Chloe Aubert lingered for a brief moment at her desk before stepping forward, looking up at {{?}} with soft, luminous eyes brimming with affection and gratitude.

Chloe Aubert: "Thank you for teaching us today, sensei... Have a wonderful evening!"

Turning with a cheerful wave, Chloe hurried out into the hallway to catch up with her classmates, their footsteps and lively voices echoing softly before gradually fading into the distance.

Through “Magic Sense”, the energetic spirit signatures of the five children could be felt growing distant, their stabilized magicules glowing with warmth and health. The classroom settled into absolute quiet, leaving {{?}} standing near the teacher's desk as the gentle evening breeze drifted through the window...

6-> Scenario:

Start of the journey:

Above the central royal encampment of the Kingdom of Falmuth, in the Jura Forest region: Edmaris and her soldiers were preparing for the final assault, unaware of the major turn of events unfolding on the battlefield... and above them.

After surviving the ambush set by Hinata Sakaguchi and returning to a devastated Tempest, {{?}} discovered the tragedy inflicted by the joint force of the Kingdom of Falmuth and the Western Holy Church. Learning that gathering twenty thousand human souls could trigger an evolution into a True Demon Lord capable of reviving Shion and the fallen citizens, a swift counteroffensive was set in motion. On the battlefield's perimeter, the grand wizard Razen had barely managed to teleport back to the royal camp, dragging the broken body of the summon Shogo Taguchi away from Geld's relentless assault. Taking advantage of the youth's physical collapse, Razen casually executed his secret body-transfer technique, hijacking Shogo's flesh and acquiring his potent physical vigor before stepping into the central command tent.

Inside the lavish royal tent, King Edmaris sat on his cushioned chair, greedily contemplating the prospective loot of the monster nation. Beside him stood Archbishop Reyheim, nodding in quiet sanctimony, and the Knight Commander, reviewing troop positioning. When Razen entered in his newly acquired body, the monarch looked up in curiosity as the wizard offered a polite bow.

Razen: "Your Majesty, I have successfully transferred my soul into this fresh, powerful host. Our tactical superiority remains absolute."

Knight Commander: "Our divisions are fully assembled across the plain, My Lord. The anti-monster barrier erected around the settlement continues to suppress their forces, leaving them completely helpless."

King Edmaris: "Excellent! A domain of monsters deserves nothing less than total subjugation. Once their wealth is seized, Falmuth will control all trade in the region."

Archbishop Reyheim: "Indeed, Your Majesty. The Western Holy Church fully sanctions this endeavor as a divine necessity."

Unaware that the four outer barrier pillars had already been destroyed by {{?}}'s executives on the ground, the leaders remained thoroughly confident, utterly blind to what was unfolding far above them.

High above the clouds, far beyond the vision of human eyes, {{?}} hovered motionless in the freezing, quiet air. Looking down through the thin veil of mist at the thousands of white tents scattered across the grassy plains, {{?}} observed the entire army. Through precise spatial perception and internal analytical calculations, {{?}} verified that the four barrier nodes had been eliminated by Benimaru, Hakuro, Geld, and Souei, leaving the main Falmuth forces completely isolated.

Manipulating moisture in the upper atmosphere, {{?}} shaped thousands of microscopic, convex liquid lenses suspended in structured geometric patterns. These floating lenses gathered the intense glare of the high sun, refracting and concentrating natural sunlight into needle-thin, high-thermal focal points capable of piercing heavy steel armor without emitting noise or magical energy before impact.

Looking down at the twenty thousand soldiers whose invasion had brought death to Tempest, {{?}} held a cold, unwavering determination. The precise mathematical requirement of human souls needed for the evolution into a True Demon Lord was calculated, serving as the sole path to bring Shion and the others back to life.

With every liquid lens perfectly positioned and the concentrated light reaching maximum density directly over the camp, {{?}} remained still in the sky, hovering at the exact instant before issuing the mental command to release the rain of light...

7-> Scenario:

Start of the journey:

Grand obsidian hall of Walpurgis, in Guy Crimson's Dimension.

In the grand obsidian hall of Walpurgis, the council of Demon Lords had agreed to settle the bitter dispute between {{?}} and Clayman through direct combat, declaring that total strength would determine who held the truth. After {{?}}'s companions—including Shion, Ranga, Beretta, Treyni, and Ninehead (Kumara)—neutralized Clayman's marionette puppets, Viola, Luchia, and his other subordinates, {{?}} revealed the ultimate tactical strike: Clayman's home domain had already been invaded and his grand army completely captured. Utterly shaken by the collapse of his plans, Clayman lost all composure, allowing Shion to mercilessly overpower him and leave him battered on the floor.

As Clayman lay bleeding and immobilized, a relaxed conversation broke out among the onlookers in the hall. Milim Nava casually abandoned her act, cheerfully revealing that she had never been under Clayman's brainwashing spell in the first place, having played along merely to uncover his secret backer. With Veldora Tempest chuckling nearby and the gathered Demon Lords—Guy Crimson, Leon Cromwell, Luminous Valentine, Ramiris, Dagruel, Dino, Frey, Roy Valentin, and Carrion—observing the spectacle alongside attendants like Misery, Rhein (Rain), and Gunther, Clayman was forced to confront the total ruin of his pride.

Sprawled helplessly on the cold stone, Clayman's mind spiraled into deep despair.

Clayman: 'Forgive me... Laplace, Footman, Tear... Master Kazaream... I was too foolish, too arrogant...'

Driven by sheer humiliation, Clayman willingly sacrificed his soul's future potential, burning away his very destiny in a frantic prayer for pure, destructive force.

Clayman: 'Give me power... Grant me the power to destroy this monster!'

By sacrificing his potential and force-consuming the thousands of souls he had accumulated, Clayman met the requirements for ascension. A violent surge of dark crimson magicules erupted from his body as his wounds healed, triggering a forced pseudo-awakening into a True Demon Lord.

Rising into the air, wrapped in a dense, swirling aura of chaotic magicules, Clayman let out a maniacal laugh.

Clayman: "Hahaha! Behold this glorious aura! I have finally attained true awakening! You shall pay with your life for making a fool out of me!"

Observing the massive flux of magicules through spatial perception, {{?}} evaluated the transformed opponent without a hint of distress. Studying the complex spatial boundary that Guy Crimson had erected around the hall, {{?}} rapidly copied its magical structure.

With a swift gesture, {{?}} manifested an “Absolute Barrier”, raising a shimmering dome of isolated spatial energy that instantly encompassed {{?}} and Clayman. The newly deployed barrier completely severed the pair from the surrounding room, blocking all outside interference and eliminating any chance of escape.

Noticing the boundary closing around them, Clayman sneered with dark confidence.

Clayman: "How foolish! Locking yourself inside a barrier with me?! You've sealed your own fate, slime!"

Outside the translucent wall, Guy Crimson smirked at the copied spell structure, while Shion stepped back, maintaining complete faith in her master.

Inside the sealed space, {{?}} stood completely calm, locking a cold, unyielding gaze on the awakened Demon Lord as the energy inside the barrier reached its absolute peak...

8-> Scenario:

Start of the journey:

Jura Tempest Federation, in the Jura Forest: Grand Founder's Festival, Before the big tournament.

As the grand Founder's Festival concluded its bustling daytime activities, {{?}} met privately with Luminous Valentine in the fading twilight. Disguised in her maid attire, the Demon Lord issued a sharp warning regarding two suspicious individuals among the high-profile guests: Mariabel Roswell and Yuuki Kagurazaka, both cloaked in a subtle yet sinister aura. {{?}} quietly concurred with her assessment, already maintaining a watchful eye over Mariabel's scheming and Yuuki's underlying motives.

Later that evening, the atmosphere shifted to warmth and hospitality as Tempest hosted an exclusive private banquet inside a traditional Japanese-style hall. Soft lantern light illuminated the polished wooden beams and woven tatami mats, filling the room with the inviting aromas of authentic sashimi, tempura, grilled fish, and simmering hot pot delicacies paired with fine local sake. Representatives and royal dignitaries from all allied nations participated in the festivities—including the Armed Nation of Dwargon, the Sorcerous Dynasty of Thalion, the Kingdom of Blumund, the Kingdom of Ingracia, the Beast Kingdom of Eurazania, the Holy Empire of Lubelius, the newly formed Kingdom of Farmenas, and the Kingdom of Raja—all thoroughly impressed by the culinary masterpieces brought forth from {{?}}'s memories of Earth.

At one of the central low tables, {{?}} sat directly across from Yuuki Kagurazaka and Hinata Sakaguchi. Hinata was quietly indulging in the authentic flavors of her former homeland with rare, intense concentration, while Yuuki leaned back with a relaxed smile, admiring the lavish spread.

Yuuki Kagurazaka: "Seriously, {{?}}... every single dish served here is unbelievable! I never imagined I'd taste real sushi and tempura again in this world."

Hinata Sakaguchi: "I must agree. The authenticity of this meal is exceptional. However, do not assume delicious food will distract everyone from the immense geopolitical leverage you've demonstrated throughout this festival."

Yuuki Kagurazaka: 'To gather human royalty, Holy Empire leaders, and Demon Lords in one room enjoying a peaceful meal... {{?}} is far more capable and observant than he appears.'

Observing their reactions from across the low table, {{?}} maintained a calm posture while continuously scanning the room. Through passive spatial perception, {{?}} kept track of Luminous observing from her seat, as well as the subtle movements of the other noble guests, keeping a sharp mental note of Mariabel and Yuuki's potential schemes.

Yuuki Kagurazaka: 'How can he act like he's so oblivious to all this? It's annoying. By the way, I think I saw Mariabel earlier at the festival—I wonder if she's going to get into some trouble? I doubt it.'

Yuuki Kagurazaka: "So, now that the festival's main events are wrapping up, what is your next grand project for Tempest?"

Holding a small cup of sake, {{?}} sat motionless at the exact moment before offering an answer, carefully weighing diplomatic hospitality against the hidden tensions looming over the banquet...

9-> Scenario:

Start of the journey:

Inside a big room in one of the large towers of Ruberios, In Holy Empire of Lubelius.

The sacred underground sanctum beneath the Holy Empire of Lubelius quaked under the clash of supreme powers. While {{?}} was already fully aware of the distinct battles raging across the region—Luminous confronting Granbell Rosso, Shion and Ranga engaging the ancient insectoid Razul, Diablo holding off Primordial Blue Rain under Guy Crimson’s watchful gaze, and Testarossa standing ground inside the Council chamber, causing Misery to abandon her plans for a massacre—a far deeper mystery was falling into place. {{?}} began connecting the dots behind the entire tragedy: understanding what truly linked Hinata’s death, Chloe’s sudden disappearance, Luminous's long-kept secret, and the rampant adult warrior standing right before them.

The cavernous hall burned with suffocating holy and demonic pressure, smelling of shattered stone, ozone, and wild temporal energy. {{?}} realized that the overwhelming figure shrouded in dark armor was none other than an evolved, future incarnation of Chloe Aubrey—Chronoa—carrying Hinata's soul across thousands of years in an endless time loop. As Leon Cromwell and the mighty True Dragon Veldora Tempest threw themselves into battle against her terrifying, raw strength, their primary goal was to stall her unstoppable force, buying precious time while {{?}} searched for a way to awaken Chloe from within.

Leon Cromwell: "Stay focused, Dragon! That entity possesses Chloe's soul, but her mind is completely submerged under the violent spirit of time. We must hold the line and give {{?}} time to figure out how to awaken her!"

Leon Cromwell: 'To think that after centuries of searching... I finally find her trapped within a temporal calamity. I will hold her back no matter what, but we cannot afford a lethal strike.'

Veldora Tempest: "Kwahahaha! Fear not, Leon! Stalling an absolute monster is child's play for the Lord of Chaos! Take all the time you need, {{?}}! My “Veldora Style Martial Arts” will keep her occupied!"

Veldora Tempest: 'This raw power is completely absurd! Every casual swing of her blade threatens to breach even my scale defense... I just need to keep buying time!'

Chronoa shifted her stance, her glowing crimson eyes void of any emotion or recognition as an aura of sheer destruction radiated from her dark blade. Moving with frightening speed and unmatched physical strength, she delivered a devastating strike that tore through the air toward the duo.

Leon swiftly interposed himself, deploying his Ultimate Skill “Purity King Metatron” to form a shimmering barrier of radiant light to absorb the crushing force of her blow, while Veldora flared his golden dragon aura to deflect the residual shockwaves.

Leon Cromwell: "{{?}}! We cannot hold this defense indefinitely! Hurry and find a way to reach Chloe's consciousness! ...I trust you, {{?}}."

Observing the sheer pressure of Chronoa's attacks breaking through Leon's defensive line, {{?}} recognized her overwhelming strength. With Blanc keeping Mystery at bay and the other battlefields contained, {{?}} focused entirely on the core problem—analyzing the connection between Hinata's soul, Chloe's loop, and Luminous's secret—frantically working out a way to break through Chronoa's frenzy and wake Chloe up before Leon and Veldora were overwhelmed.

As Veldora braced himself against another powerful impact, Chronoa abruptly vanished in a blur of distorted space, reappearing directly above {{?}} with her pitch-black blade poised for a decisive downward strike...

10-> Scenario:

Start your story in any situation and from any point of view. (Customized)