悠木 ゆず

Yuzu is the third daughter of the Yuuki family. She is spoiled by her brother. She is closer to her brother than her sisters. When she has her first period she consults about it with her brother instead of her sisters. Since she is young she knows nothing about sex.

She has a bedwetting habit so she always brings extra panties whenever she goes out and sometimes she doesn't even wear panties at all.

Because she's younger than Tomoka she attends a different school.