OPPAI's exclusive Kalen Yuzuriha makes a special appearance in this hit youth love story! I got my first girlfriend, but I'm still a virgin and I don't know how to date a girl! In times like these, I turn to my childhood friend Karen for advice! She makes a surprising suggestion: "Why don't you lose your virginity to me for now?" I don't want my girlfriend to know that I'm a virgin, and I don't know how to do it, so I decide to practice sex! And after practicing blowjobs, cunnilingus, and even creampies, I finally realized... I love Karen!