Shiho Hamabe plays an overlooked office worker who has a boyfriend but is sexually unsatisfied. Hashimoto, an aggressive and outgoing man at a client company, relentlessly harasses her. She pretends to be troubled, but the attention secretly turns her on so much that she masturbates to it. Her hidden obsession with sex finally erupts as she surrenders to the training, cums repeatedly, and begs to betray her boyfriend with him.