Mihoko married her college classmate. One day, she attended an alumni reunion and reunited with her ex-boyfriend, Kozuka. The thrill of their first meeting in years stirred her heart, but Mihoko, not wanting to disrupt her current life, chose to interact with him as a friend. However, Kozuka was different. Unable to forget Mihoko, he visited her home when her husband was away and sought a relationship. Unable to refuse, Mihoko felt guilty but still enjoyed the sensation of another man's penis for the first time in a long while…
