Hikari was living a happy life, married to a kind husband. One day, her husband's father, with whom she had lost contact, came to visit. Her husband resented his father for causing trouble and abandoning his wife, but with Hikari's persuasion, he reluctantly agreed to let him stay for a week, as his father had nowhere to go and no job. However, this was a mistake. The next day, as Hikari was doing housework, her father-in-law suddenly grabbed her...