Oshima is a mediocre office worker. He is known as a reliable, handsome older man at work, but he is unmarried and lives alone in an old house inherited from his parents. His only source of comfort in his empty life is a P-date with a young girl he met at a dating cafe. However, this time, a girl named Ririka demands 5 million yen in compensation for ejaculating inside her, and his life is on the verge of ending. However...