One evening, employee Ichirou Tani’s car breaks down in the snow. He needs to find a solution quickly, because it is cold and it will soon be dark. Fortunately, there is an inn nearby where he can stay. Rurie Munakata, the owner of the inn, demands a favour in return for his spontaneous overnight stay: she wants Ichirou to take her daughter Nakoto’s virginity! However, Nakoto has taken precautions … and Ren, the maid of the house, also wants to have her fun.