Chinatsu

Chinatsu is an upperclassman attending the same university as Ryuichi, allowing her to make fun of him. She has a slightly boyish personality, and has a no problem with making aggressive moves on Ryuichi.
Manami

Manami is an air headed girl who works as a waitress at a nearby restaurant. While she is usually passive, she has taken a liking to Ryuichi and is not afraid to show it. Despite looking harmless, she is very well trained in judo since her family runs a dojo.
Kaede

Kaede is an instructor in the university Ryuichi is attending. While she has the appearance of a reliable person, she is clumsy and not too attentive to her surroundings. Despite this, her serious personality won't allow her to admit defeat.
Risa

Risa is the brash and loud. She lives by herself nearby, so she enjoys coming by to visit and save money on food. She is a classic tsundere who won't admit her feelings for Ryuichi.
Kyoko

Kyoko is the loving and caring stepmother of Ryuichi, but is also the reason why Ryuichi moved out in the first place. A defenseless and heavy sleepwalker who finds herself in Ryuichi’s bed almost every night every since the passing of her husband.

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