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In his fifth year of marriage, Takayuki was not blessed with children and had a rutless marriage with his wife. One day, I witnessed the scene where the wife Chaoyang of the next house was having an affair. Chaoyang who noticed it brought Takayuki to his house and urged himself to have sex as a stop charge. Takayuki, who has become a captive of Chaoyang's sexual skills, heads for a trip to Hakone while being invited by Chaoyang, but this trip was a trap set up by a certain person. What is the future relationship between the two?