mikuni miharu

A teenage girl was introduced in chapter 18, where she returned Keita's acceptance letter after finding her dog trying to bury it in her yard. Due to a mix of stress from initially thinking he didn't get in and the relief upon learning he did, Keita impulsively hugs her. Since then, she has shown an attraction towards Keita, often blushing during conversations and feeling very comfortable when he hugs her, yet she claims to have nothing to do with him. Despite her obvious attraction, she keeps her distance because of his sisters and her inexperience around boys. She even fantasizes about intense scenarios involving Keita and experiences physical reactions like orgasms from seemingly innocent interactions, such as a piggyback ride. Although she doesn't pursue Keita, his sisters still view her as a potential threat to winning Keita's affection. It is noted that she attends Gakushū Senior High and is in the same class as Keita. People frequently mistake them for being involved, leading her to often be caught in the crossfire of the twins' antics, which she comments on in chapter 25. She is the only girl who makes Keita nervous, hinting that he might have feelings for her. Additionally, she has a weak bladder and occasionally wets herself, including once in front of Keita, but he promises to keep it a secret.