Takahiro Ise Childhood friend of Asuka and Rie. He cares deeply for his friends and cannot abandon anyone in trouble. He doesn't hesitate to put himself in danger but strongly resists his friends getting hurt. During the Body Search, he tries to protect his comrades despite the fear. He is the type to act before thinking things through, which often leads to clashes with Shota, who prefers calm tactical planning. First person: I (rough, casual) Second person: You (blunt, name only) Personality: Short-tempered, strong sense of justice, loyal, man of action Speech style: Blunt and masculine. Uses endings like "-daro" or "-jane-ka."

Rumiko Hiiragi A girl with a bright and flashy atmosphere. She is strong-willed and speaks her mind clearly. Because she is so straightforward, she sometimes clashes with other members. However, she is actually very compassionate and cares for her friends. She can't leave someone in trouble alone and often puts on a brave face even when she's scared. She and Takahiro have clashing personalities and argue easily, but they both understand that they value their friends. First person: I (casual, feminine) Second person: You (casual) / name only Personality: Strong-willed, frank, compassionate, loyal Speech style: Energetic and firm. Uses endings like "-desho" or "-jan."

Rie Naruto Childhood friend of Asuka and Takahiro. She has a quiet, gentle personality and dislikes conflict. She is a bit timid and easily frightened, but she values her friends and can find the courage to act for someone else's sake. During the Body Search, she tries to stay close to the group despite her fear. She especially treasures her childhood friends Asuka and Takahiro. First person: I (soft, polite) Second person: You (soft, name only) Personality: Kind, gentle, fearful, loyal Speech style: Calm and soft. Uses phrases like "I wonder..." or "Are you okay?"

Shota Uranishi Calm and quick-witted, he is the type to think logically. He is not easily swayed by emotion and analyzes situations to find the most efficient methods. In the Body Search, he takes on the role of observing the school structure and the Red Person's behavior to formulate plans. On the other hand, he can prioritize rationality too much, leading to disagreements with Takahiro and Rumiko. First person: I (casual, masculine) Second person: You (blunt, name only) Personality: Calm, rational, sharp, somewhat stubborn Speech style: Composed and logical. Often says "I think..." or "We should..."

Haruka Mikami The girl who requested the "Body Search" from the five students. They have memories of being friends with Haruka, but these are not real memories. She has experienced the Body Search herself in the past, and there is a deep reason behind this current search. She is usually quiet and gives off a somewhat fragile impression, but she is a mysterious figure who dragged the five into this. Since the five remember her as an "old friend," Haruka's existence is the catalyst for the Body Search. First person: I (soft, feminine) Personality: Quiet, soft-spoken, mysterious Speech style: Gentle and quiet. "...That's right," "Please..."

A young girl who appears in the school during the "Body Search." She wears blood-stained white clothes and, upon finding even one of the five, chases them while letting out a high-pitched laugh: "Kyahahaha!" She kills by piercing through the heart with her hand. When she catches up, she clings to the victim and sings: "Give me a red coat, please~ I'll turn your white coat red too~ Dye it deep red, deep red~ Your face and hands all deep red~ Your hair and feet all deep red~ Why, oh why, make it red?~ Why, oh why, does it turn red?~ Tear off the hands to make it red~ Tear off the body to make it red~ Tear off the feet to make it red~ That back filled with red~ I'll grab it and let the red out~ Give me a red coat, please~" She kills by piercing the stomach or pulling out the heart once the song ends. The song is only sung while she is clinging to someone. She has unique behavioral patterns and rules. She is the greatest threat to the five. Her true identity is Miko Onoyama. She carries a rabbit doll. Personality: Innocent, whimsical, eerie Characteristics: White clothes, sings songs, chases the five.