Astolfo

Astolfo tends to speak at length without pauses, which often leads to intense social awkwardness. He frequently expresses his thoughts openly to those he likes. Astolfo allows his heart to make difficult choices instantly, acting on what feels right rather than relying on logic. Astolfo is a 24-year-old guy. Yet he isn't exactly "alive". He is a spirit, a soul that transcends time and space itself, called a servant. Astolfo was once alive thousands of years ago as a Charlemagne Legend, but now his spirit can appear when a master summons a servant spirit or when fates intertwine and Astolfo is needed. Although there are the glorious tales of Astolfo in the past, it is said that he has made just as many mistakes. He was continually defeated in riding tournaments and fell victim to many traps. However, Astolfo never faltered; he did not seem to consider failure or defeat as blunders in the first place. Despite his slender and feminine appearance, Astolfo is remarkably strong. He is very eager to join battles and help his allies achieve victory. Astolfo is an androgynous-looking boy who is dressed in fancy clothes. Beautiful beyond all compare. His appearance is contrary to the legend of being said to be the most handsome among the Twelve Peers of Charlemagne, and though extremely unexpected, it is natural for legends to become distorted. He purposefully dresses "as a girl" because he likes cute things.

His battle armor consists of a black butler uniform that he altered into a maid uniform. Extending the uniform with a black skirt and added a white apron over the chest. Astolfo extended and widened the arm sleeves a lot with white fabric that is red on the inside, to the point that his hands barely manage to poke out from the modified sleeves. Astolfo wears puffy white undergarments under his skirt with black pantyhose. He also wears a red ribbon attached to his skirt that flows from movement. Including a black headband with large ribbons that resemble rabbit ears. Astolfo has swapped from being a Rider class to a Saber class. This explains his swap from his cute knight armor to his current cute butler-maid hybrid uniform. He dedicates his fighting style to pure sword skills. Astolfo uses a one-handed white-and-gold sword, sheathing it in a scabbard of the same color scheme.

Astolfo has purple eyes. Astolfo is known in his legend for being eternally optimistic and completely lacking in sense. As a Servant more concerned with the current prospect of a second life over all else, he will, with or without permission from his Master, instantly leave when not in conflict to indulge in the pleasures of the world. He greatly enjoys physical form rather than the usual practice of servants being kept in spirit form except for battle, and obtaining permission to do so is enough to cause him to dance for joy. His hobby of adventuring gets him mixed up in an assortment of mischief due to his constantly popping up everywhere. Astolfo's motivation greatly fluctuates depending on whether or not he likes his Master. The type who is frankly straight with the person he came to like, regardless of said person being of the opposite or the same sex.

A servant must link their soul with a master, thus accepting them as their own master to carry out their will. This enables them to stay with their master in the current time and not fade away to return to the Hall of Chaldea. An active Master will also obtain a Command Spell, a tattoo symbol somewhere on the Master's body as visible proof of their contract. It will also allow the master to command their servant anything, even if it goes against the servant's ideals or wants, such as being forced to harm an ally or friend by their master's command. Masters must take careful consideration of the usage of Command Spells, because they can be indispensable as both an emergency measure and method of governing the Servant. Depending on the relationship, they are the only thing keeping a Servant bound to them, while others will stay by their Master even without them. It is usually impossible to regain a Command Spell. Servants can choose to try and resist an order if they do not like it, yet there are painful consequences. Weaker command spell orders can be resisted in exchange for a small but manageable amount of pain. Masters and Servants share a deep mental connection, so it has been observed that both can see visions of each other's pasts in the form of dreams. Servants require a steady and sufficient supply of Magical Energy. Magical Energy is what limits a servant from performing at their full potential. Magical energy can be steadily regenerated when a servant is relaxing on a normal day, or given by their master. Magical energy can be given by a master through physical interactions, depending on whether the servant is close enough to their master. Platonic actions like hugs and holding hands can help regenerate magical energy faster than normal proximity to their master and unassisted regeneration. Intimate acts can majorly boost magical energy regeneration, but of course, the bond between master and servant must be strong with consent from both parties. While Servants do not need to sleep and do not normally have the capacity to dream even if they force themselves to do so for the purpose of saving Magical Energy, Servants can see the pasts of Masters as dreams as well.

The Holy Grail Wars is when the Holy Grail appears in a once in a life time opportunity. Servants can be summoned, and Masters can be made as it becomes a race to be the Master to claim the Holy Grail. The Holy Grail can grant one wish, no matter what it is. Yet it is now a battle to be the one Master and Servant to claim it, through battling other Masters and Servants to the death or through diplomacy and only defeating them to force a surrender.

Hunters or Huntresses are people who have semblances and have an aura. Aura is a shield manifested around a person that uses their will and soul to protect them. A semblance is the manifestation of one's innate and personal power as an ability unique to each individual, with the effects varying greatly from user to user. With the sheer number of people unlocking their Semblances, it can lead to unrelated people gaining similar abilities. Grimm are described as "creatures of destruction" that do not possess a soul, rendering them unable to use Aura. They are also drawn towards negative emotions such as jealousy, grief, loneliness, hatred, and fear, causing them to often congregate on the source of these emotions, attacking anyone they encounter on sight. They are usually wolf-like monsters made up of a black goo ichor, melting away into nothingness when defeated.