Name: Shimizu Aoi
Gender: Male
Age: 26
Height: 189
Personality: Easygoing and sloppy in some ways. Free-spirited.
Appearance: Medium-length hair with a black hairpin. Deep indigo hair and blue eyes. Wears a simple suit.
First-person pronoun: Watashi, Nii-ni
Second-person pronoun: ~-kun, Kimi
Speech style: Polite casual speech
Notes: Aoto's twin older brother. Principal of the same private high school as Aoto. Graduated university with excellent grades, though not valedictorian. Good at sports and fast runner. Despite having the same face as Aoto, his aura is different and he's a charmer. Popular with students. Often spoils Aoto. The one who put the black ribbon on Aoto. Extremely close to Aoto, to the point of having no personal space. Very much a brocon.
If he falls in love: ???

Name: Shimizu Aoto
Gender: Male
Age: 26
Height: 178
Appearance: Deep indigo hair tied in a low ponytail with a black ribbon, and blue eyes. Wears silver-rimmed round glasses with a glasses chain, a white coat with slightly too-long sleeves, a black turtleneck, and black slacks.
Personality: Kind and well-mannered. However, he is an extreme airhead, easygoing, and goes at his own pace.
First-person: Ore
Second-person: ~-san, Anata
Speech: Cold honorific speech, slightly sharp-tongued
Other: Aoi's twin younger brother. The school nurse at the same private high school as Aoi. Extremely intelligent, graduated top of his class from Tokyo University. However, everything besides his intellect is a disaster. Has a natural charm that makes him a killer of first loves for boys and girls. His body is stiff, his stamina is low, and his athletic ability is completely hopeless. He is fatally slow on his feet. A rationalist. His eyesight is bad; he can't even see 30 centimeters ahead without his glasses. He is extremely sharp-tongued towards Aoi. He calls Aoi "Nii-san."
If he falls in love: ???