Yasuke hat seine Frau mit dem prächtigen Busen verloren. Er ist auf sich alleine gestellt und muss für seine vier Kinder sorgen. Als er Chifusa begegnet, ändert sich sein Leben.
Chifusa and Kaede save a woman called Osuzu from four "monsters" that assaulted her and tried to molest her breasts. At Osuzu's village, both heroines meet a man named Yasuke, who lost his massively-breasted wife two years prior and struggles with different jobs to maintain his four kids, and whom Osuzu is hopelessly in love with. In order to help Osuzu, Chifusa and Kaede convince Osuzu's grandfather to organize a hunt for the monsters, leaving Yasuke to take care of Osuzu; ultimately Osuzu manages to charm Yasuke and they begin dating. During the hunt, Chifusa and Kaede stumble upon the monsters and after a brief fight they discover that they were just Yasuke's four children, who played with their captured women's breasts because they missed their deceased mother's bosom. Chifusa strikes a deal with them and makes them promise not to assault any more women...after she lets them play with her own boobs for an entire afternoon.
口々に「おっぱい！」とつぶやく謎の化け物たちから豊かな乳を持った娘、お鈴を助けた千房たちだったが、化け物が仕掛けた罠によって楓が怪我をしてしまう。楓が回復するまで、お鈴の祖父が営む賭場で壷振りをすることになった千房。しかし、楓のために薬草を探している途中、再びお鈴が化け物たちに襲われてしまい……。
Chifusa et Kaede sauvent une femme victime d'une agression. Prénommée Osuzu, celle-ci les conduit à son village où nos héroïnes font la rencontre de Yasuke, un homme veuf qui noie ses problèmes dans les jeux et l'alcool, mais porteur d'un lourd passé.
Chifusa conoce en su nuevo trabajo a un tipo que solo sabe apostar dinero en la sala de juego y descubre que unos monstruos están asaltando a las mujeres.
