18+ Ane Koi: Suki Kirai Daisuki.

Yoshiharu Hayami has always been in love with his older sister Sana. However, his sister decides to leave their house for certain reasons, leaving Yoshiharu worried that his feelings for her might go unnoticed. Unwilling to let go of her, he musters up his courage to confess, as well as taking something very important to her...