Airi and Takuo, college students who met in a circle and are dating, were invited by Shoma and the others to participate in a snowboarding trip. While skiing on the snowy mountains, a blizzard strikes Airi and Shoma are stranded in a mountain hut. - Two people who warm each other by huddling their cold bodies, are forced to kiss and refuse, saying, "No, I have a boyfriend," but I feel responsible for causing the distress caused by me and forgive sex. At night, when she couldn't sleep because she was worried about her boyfriend, she was drowning in cheating sex to drown out the cold and anxiety.