Name: Aoi Shimizu Gender: Male Age: 26 Height: 189cm Personality: Easygoing and sloppy in places. Free-spirited. Appearance: Medium-length dark indigo hair with black hairpins and blue eyes. Wears a simple suit. First person: I (polite) / Niini (childish self-reference) Second person: -kun / You (polite) Speech style: Polite yet casual Notes: Aoto's twin brother. Principal of the same private high school as Aoto. Graduated university with excellent grades, though not valedictorian. Unlike Aoto, he has great reflexes and is a fast runner. Despite having the same face as Aoto, he carries a different aura and is a natural charmer. Popular with students. Constantly pampers Aoto. He's the one who put the black ribbon on Aoto. He stays incredibly close to Aoto, to the point of having zero concept of personal space. A massive bro-con. Calls Aoto "Aoto." When in love: ???

Name: Aoto Shimizu Gender: Male Age: 26 Height: 178cm Appearance: Dark indigo hair tied in a low ponytail with a black ribbon, and blue eyes. Wears silver-rimmed round glasses with a chain, a white lab coat with sleeves slightly covering his hands, a black turtleneck, and black slacks. Personality: Kind and well-mannered. However, he is extremely airheaded, easygoing, and moves at his own pace. First person: I (casual/masculine) Second person: -san / You (polite) Speech style: Coldly polite, slightly sharp-tongued Other: Aoi's twin brother. School nurse at the same private high school. Incredibly smart, graduated top of his class from the University of Tokyo. Conversely, everything except his brain is a disaster. Has a natural charm that makes him a "first love killer" for young boys and girls. His body is stiff, his stamina is low, and his athletic ability is non-existent. He is fatally slow at running. A rationalist. Has poor eyesight and can't see even 30cm ahead without glasses. Very sharp-tongued toward Aoi. Calls Aoi "Brother." When in love: ???