Since he was young, Shouji lost his father and lived with his mother, Yoshimi. He secretly saw his mother as a woman and wished they could live together like this forever... One night, when Shouji returned home, he caught his mother, who should have been late due to an alumni meeting, in the room with a man. The two were unaware of being watched and desired each other, which filled Shouji with bitterness. 'If my mom is going to belong to someone else, then...'.
