Several weeks have passed since Yuri and Shiori were forced to walk around the city naked and were sexually harassed by their cousin Souta. Now their mother, knowing nothing of their experience, has told the girls that they are going to visit their aunt and uncle in the countryside to take care of Souta for a week. Despite their protests the girls have no choice but to go.

Forced to take the bus wearing only a shirt, abandoned in the mountains naked with no way to get home, wearing nothing but a leash and collar and treated as pets out for a walk, Souta's sexual harassment games begin again.