Mokoka Tachinoki/Relationship

Family

 * Sumika Tachinoki: She is the younger sister of Motoka, Motoka is protective of her not allowing older guys hit on her or letting her drink with her.
 * Miss Tachinoki: Is the mother of both Sumika and Motoka. Motoka loves her as mush as she does trusting her with guys in the house only if it's Wataru.

Friends

 * Wataru Akiyoshi: Wataru and Motoka have been friends since there childhood. Motoka has had an crush on him for an number of years but not going after him. As she has been holding back her feelings but change one day after school asking him to come over and eat dinner but taking the change to sleep with him in the bathroom of her house. During their act Sumika fall in the room stopping them.

Rival

 * Ayane Iwashita: Motoka hasn't know what happen between Wataru and Ayane. After Motoka and Wataru started dating Motoka has became jealousy of all girls calling or texting him.