Based on a game by Mu. Naoto and his lover Miyuki were heading to a ski resort, but their bus got stuck in a blizzard. The passengers were assisted by Natsuyo, the landlady of a Japanese-style hotel, and they decided to stay at the hotel for a while. That night, Naoto and Miyuki made love at the hotel repeatedly, but he could not be satisfied, and eventually he began to love Natsuyo. The situation was the same for the other passengers. In this closed space, rituals and accidents continued... A bizarre and erotic story was just beginning...