Erotic novel: The end of love between the next-dominated wife and husband - Mizuno Asayo

Takayuki has been married for five years, and is not blessed with enough companionship to his wife and is living a rutty marriage. One day, he witnesses the scene where Asayo, the wife of the neighboring house, is having an affair. When Asahi realizes this, he takes Takayuki to his home and forces him to stop the relationship and has sex with him. Takayuki, who has become captivated by Asahi's sexual techniques, heads to Hakone with Asayo invited, but this trip was a trap set up by someone. What will the two of them have in the future...