由香

The little sister of the Protagonist and best friend of Youko. Very close to her brother a few years ago, she decided to take a little distance to be able to take a closer look at the boy she has an interest and who is in her class: Takashi-kun.

Although she may seem quite distant with her big brother, she really loves him because he is very kind and attentive to her.

When her brother takes the lead by forcing their first sexual experience, she doesn't know how to react. Was it really a rape? At first she thinks so, the pain of her first time made her tell her brother that she hated him, but the other feelings she felt on the spot were not all negative. 

How does her brother see her? Like his little sister? Or like... a woman?

She is very confused the first days because he also expresses that he wants to take all her first times. Lost, she tries to escape from her home, in vain. Her brother then decides to punish her and to flood her with his desire. Then, when Yuka resigns to flee, he decides to show her more sweetly the nature of his love for her.

Over time, she realizes her brother's honest romantic feelings (although she still thinks he could have expressed them in a better way than raping her). A few days before the return of their parents, she decides to accept them and to begin with him a sincere love relationship, but which will remain secret for the rest of the world./