Kiriko writhes in agony during her affair with her husband. One day, however, she is shocked to witness her husband cheating on her and seduces Kazuo, an apprentice at the gardening business who frequents her. She invites him to perform cunnilingus and fellatio on him at work, and when Kazuo comes to collect his bills, she seeks his penis like a raging bitch, devouring the pleasure.