As usual, he was spending his days in lovey-dovey and erotic situations with the gals, but one day, Ruri, when alone with Imaizumi, makes a date with him. She cherishes the time spent with Imaizumi, and as soon as she returns to the apartment, she starts an intense, body-melting erotic session... Ruri, feeling the love, repeats the act countless times. But the other gals realize that the two are having sex...!?