Sumi Kurokawa is pressured into marriage when her fiancé causes an accident that injures an elderly person. To take responsibility, the victim's family demands that she care for the old man. However, the elderly man uses Sumi's guilt as an excuse to repeatedly sexually harass her. He forces his tongue into her mouth, gropes her ass, gets his dick hard, and demands she service him. His demands grow relentless, leaving Sumi helpless and unsure of what to do.