Misaki Yuuki, also known by her zodiac name Sharyu and the title Warrior of the Monkey, is a contestant in the twelfth Zodiac War. She is a young woman of short stature, with short orange hair and glasses, and typically wears a green combat jacket, an orange scarf, a headset, a skirt, pantyhose, and boots. She often carries a large bag filled with camping and survival gear. Her combat philosophy is defined by a deep commitment to pacifism; she is a renowned mediator who has facilitated countless ceasefires and peace treaties across many conflicts. Her approach to the tournament is to avoid bloodshed by proposing that the warriors cooperate, with the eventual winner using their wish to resurrect the others. This idealistic stance sets her apart from most competitors.

Her background involves a painful family history: her father, the previous Boar, chose her to take part in the Zodiac War, and she was subsequently abandoned by him after being betrayed by adults. She spends the next twelve years fighting her way into the tournament, motivated by a desire to reclaim her father and perhaps also to protect a new younger sister figure associated with the Sheep. Despite being repeatedly exposed to the horrors of war, she maintains an optimistic and kind nature, and she enjoys baking pastries.

In terms of abilities, Misaki is a master of multiple martial arts and possesses considerable physical strength. Her signature power allows her to manipulate the physical state of any matter she touches—for example, turning stone into sand or altering the consistency of liquids. This ability is primarily used defensively or for battlefield control, in line with her preference for non-lethal resolution. She is described as killing by settling matters peacefully, and her tactical acumen is high enough to recognize the futility of direct aggression.

Within the story, Misaki serves as a moral foil to the other warriors, advocating for unity and compassion in a competition designed for slaughter. Her key relationships include a tense dynamic with Rabbit, who embodies the chaotic violence she opposes, and a complicated history with Boar, whom she once considered a father figure. She also shares a mutual respect with Ox, one of the few warriors who acknowledges her strength. Her development centers on the tragic clash between her pacifist convictions and the ruthless reality of the Zodiac War. Ultimately, her inability to fully comprehend Rabbit’s psychotic nature leads to her death, underscoring the theme that idealism alone cannot survive in a tournament built on betrayal and murder. Her legacy is one of a sincere but ultimately futile attempt to break the cycle of violence.