Saki is the older sister of Boku-kun. When they were young, she had the habit of tease him dawdling around in underwear and mocking him asking if he wanted to see her breasts in order to make a fool of him, for this reason he wants to take revenge on her. (Source: Mywaifulist) No voice actors have been added to this character. Help improve our database by searching for a voice actor, and adding this character to their roles .