Rintarou, suspicious of his wife Misako, hires a detective who catches her having sex with Kuroda and sends him the photos. Instead of getting angry, Rintarou confronts both of them and requests they film a sex video for him. Misako meets Kuroda at a park in disguise blonde wig and sunglasses, where he strips her, inserts a vibrator, makes her straddle a wooden horse while sucking his dick, and fucks her hard while Rintarou secretly watches and records everything