A three-day, two-night trip to a hot spring resort planned by Rie's husband Kengo and his younger brother Yuji. Surrounded by lush nature, this inn is a place of fond memories for Kengo and Yuji, as their late parents often took them there when they were young. But then, something terrible happens in this memorable place. Rie doesn't realize that the bath is now the men's bath, and runs into Yuji. Seeing Rie's body for the first time, Yuji is unable to suppress his desire and attacks her.