Chisa was troubled by her sexual desire, which was increasing year by year. Even though she tries to resolve the issue with her husband, her husband doesn't care and her frustration only increases. Chisa's frustration has reached its limit, and her son's erect penis jumps in front of her. She attacks her son without asking any questions, but the overwhelming pleasure of her ripe pussy makes him ejaculate immediately. Unsatisfied, Chisa resists her breath.