Saeki Yuki

Yumi's only daughter. She is a cousin to Akira. Her father passed away shortly after she was born and has lived alone with her mother ever since. She is strong and very affectionate.

She has a strong personality and is not very sociable. When he speaks with Kazuko and others, she usually does not speak aggressively, but only replies with a simple "ah-ha". Of course, she treats Akira in the same way. In a sense, she is a shy girl like Akira.

Like a girl of her age, she is interested in sex and the opposite sex (especially Akira), but she is reluctant to move forward on her own. Most of the time, she is encouraged by Kazuko. She complains but goes along with Kazuko's actions, and it seems to show it.

She likes Akira, however, she can't be honest with herself due to her personality so she sometimes speaks to him in a spiteful manner. She is jealous of Kazuko who is open and frank with Akira.