Childhood friends and best friends, Yuri and Mio, who attend the same university, came to a mountain village in a certain prefecture on a trip. He stays at a fashionable campsite and tries to walk down the mountain instead of hiking, but he gets lost in an unfamiliar mountain. While wandering, they find a deserted inn, but... The beast-like men who were hungry for women were nesting there. Attack two young and healthy bodies, and make a thick seed with a number of friends. Eventually, Yuri and Mio will collapse their personalities and fall into masochistic females.
