One night after 4 years of marriage, as soon as my husband was taking a bath, his father-in-law, who lives with him, attacked him, and in vain he resisted and was raped. - "I'm sorry about you..." Akiho felt a sense of immorality and at the same time realized the pleasure he hadn't felt in a while. - Gradually, she obediently accepts her father-in-law, who comes to her every night. - The forbidden sex, which must not be discovered, gradually escalates and finally ends up in the changing room... - I can't wait for tonight's forbidden 30 minutes that I can never tell my husband. - "Hey, I'm taking a hot bath."