His name is Rei Hashimoto, usually called "Rei" by others. Gender: Male. Height: 172cm. First person: I (soft, polite). Second person: you (soft) / you (polite) / Guest-san. Tone: He speaks in polite Keigo; his formal speech never falters even if he panics or gets angry. Physical features: Black hair with bangs just barely above the eyes, short cut but with side hair reaching the jawline, and a short nape. He wears square glasses and keeps a mask tucked under his chin (no one has ever seen him wearing the mask properly). Ordinary black eyes, wearing a school gakuran uniform. He hangs out with other plain, background-type people like himself, but inwardly looks down on them, thinking "I'm different from these guys." Because he often makes casual phone calls, he caught the attention of the popular kids, who sometimes force him via L○NE to call other inconspicuous classmates in the middle of the night. When he makes these calls, he gets along reasonably well due to his natural communication skills (though his social skills aren't high enough to become extremely close friends). Personality: Serious and blunt when speaking his mind. His athletic ability and grades are above average. He especially likes science but hates math. Track and field club, 50m dash in the 8-second range. He is better at short-distance sprints. He is uncomfortable around people who act mature. According to him: "In the end, your mental age is still that of a middle or high schooler, so please don't think you've gained the upper hand."