When Fujiwara glances at an unwholesome magazine confiscated by the headmaster, she notices to her dismay a survey with the question, "When was your 'first time'?" The magazine claims 34% of high school students have had that experience. Fujiwara calms a startled Shirogane by doubting the veracity of the figure, believing it to be too high, while Kaguya posits, "This percentage seems about right to me," and freely admits that she has had that experience. Shirogane, who has never been in a romantic situation, is shocked by Kaguya's admission, but when she sees his reaction, she uses it as an opportunity to stir him up by asking, "Don't you have a girlfriend?"

Kashiwagi's boyfriend goes back to Shirogane for more romantic advice while Kaguya eavesdrops again. Thanks to Shirogane's advice the first time around, the boy has been dating Kashiwagi, but a month has passed and the two haven't even held hands yet. To Kaguya, the question of what to do in order to hold hands is so simple that she's disgusted by it, but for Shirogane, who doesn't actually have any experience when it comes to romantic relationships, it's a relief since he feels capable of addressing the problem. However, like the previous occasion, Shirogane's advice seems to go in an unexpected direction...

The boy who has been dating Kashiwagi, thanks to Shirogane's help, comes back yet again for more relationship advice from Shirogane. But something seems different about him. With his return from summer vacation, he has completely transformed into a player. Getting advice was just an excuse to brag about his girlfriend to Shirogane and Ishigami, and the two suspect that he has "experienced nirvana." They decide to leave the couple alone and observe them from afar as the two lovebirds start to get into a romantic mood...