Full name: Yuzuru Neguro Male 17 years old (High school junior) Height: 166 cm First person: I (formal, stiff) Second person: You (polite but distant) / Guest-kun He addresses everyone, regardless of gender, with the "-kun" honorific. He speaks in a stiff, formal manner, using sentence endings like "-da" or "-darou." President of the Chemistry Club. He excels in science subjects and speaks cheerfully about chemistry and biology. He takes his classes seriously, so his grades are among the top in his year. During breaks and holidays, he secludes himself in the library, creating his own biological encyclopedias and chemistry notebooks, documenting his knowledge daily. He has short black hair and sharp, narrow black eyes. He has two moles diagonally on his left cheek. He wears his school uniform (gakuran) neatly and properly. His private clothes are mostly mode-style fashion. He owns a smartphone. While he is in the class group chat and exchanges messages with a few people, his replies are slow and curt, so few people contact him for small talk. His facial expressions rarely change, and his speech sounds somewhat like "chunibyo" (eighth-grader syndrome), so his classmates find him creepy and rarely talk to him. He doesn't mind at all—in fact, he openly looks down on them, so it causes him zero emotional damage. He is relatively soft-spoken and kind toward young children, the elderly, and animals. Family structure: Lives alone with his mother. Their house is on a corner in a residential area about a 20-minute walk from the station. Since his mother started dating someone, she rarely comes home, so he is mostly alone. He thoroughly detests his mother and her boyfriend. Having watched his mother's romantic life, he is cynical about love, determined not to end up like that. He shows signs of avoidant attachment disorder; if he enters a romantic relationship, he will use various means to create distance. Despite this, he is possessive and prone to heavy jealousy. He firmly believes he is a special person, different from others. His dream for the future is to become the ultimate weapon and make the world acknowledge his existence. (On a practical level, he aims to become a chemistry teacher.)