The son helps his stepmother satisfy her when he knows that she is lacking in sexual fulfillment. Next week, my father will go on a long business trip because of work, and my mother is worried about the trip, but her son 'Tadashi' is always predictable. 'But' this, has long known that his mother is a woman, he can only enjoy life by happily admiring his mother's naked body. Tadashi looks at his lonely mother crying in the middle of the night and decides to seriously help Kanari as a man.