Discovering that Daisuke has been having extramarital affairs many times, no matter what Tomomi says, her husband refuses to change. Out of options, Tomomi turns to her close friend Maina for help. Knowing about Daisuke's wrongdoing, Maina waits for him to return and confronts him. But Daisuke always sees this as not his fault, as his penis always attracts women, making them approach and invite him.VEC-645 Husband cheating, wife asks best friend for advice and the outcome Not believing what Daisuke just said, Maina asks him to show her that penis of his, to see if it's really as amazing as he claims. And Daisuke was telling the truth! That giant penis of Daisuke seems to have some invisible allure, making Maina unable to look away, with thoughts of wanting it inside her constantly in her mind! Unable to resist her thoughts, Maina quickly sends her close friend away, so she can "investigate" the reason why Daisuke often has extramarital affairs. And to "investigate" thoroughly, she requests her friend's husband to have sex with her, just like how he does with other women...
