HHinano Kamisaka has her first boyfriend. Kazuki-kun, whom I have always admired. Therefore, I definitely don't want to fail [the first time]. I don't want to be seen as bad. And Kana has used the smelly and dirty old man who is taking care of her at home as a practice partner for sex. The first kiss, handjob, blowjob, and sex were all with him. It's all for Kazuki-kun ...