Mizuki is a girl full of friendly relationships inside of school and out. However, Mizuki might have a "certain" relationship that passes simple friendly passion.
Nariyuki Yuiga[]
Nariyuki is the older brother of Mizuki and the one she probably cares the most for. Mizuki seemed to cling to Nariyuki when they were younger.
Mizuki has a serious brother complex, she gets infuriated whenever Nariyuki is with any other girl.
Rizu Ogata[]
Mizuki first met Rizu when they came to visit in Question 3 and was in awe of the talent of her cooking. This made Mizuki even more jealous of Rizu.
She dislikes Rizu because of her brother complex.
Fumino Furuhashi[]
Mizuki first met Fumino when they came to visit in Question 3, though she was capturing the little twins by telling stories.
Mizuki dislikes Fumino because of her(Mizuki's) brother complex.
Uruka Takemoto[]
Mizuki joins the swimming club in middle school and admires Uruka very much.
She met Uruka after her father died, and hated Uruka in the beginning. After watching Uruka's training, she began to admire Uruka.
Uruka is the only heroine who Mizuki does not show dislike.