The Mikura couple decided to take in their father-in-law who had decided to retire. The father-in-law, who had developed a lust for Mikura, asked the flight attendant Mikura to cosplay and couldn't help but assault her. After that, he would make her watch him masturbate in front of her or spy on her having sex with his son, continuing his pranks. Mikura's embarrassed yet compliant M expression is irresistible.
