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?"

When Kaguya stays home from school with a cold, Shirogane tells the other council members that he's going to drop off handouts at her house, an announcement that stirs Fujiwara up as she volunteers to go in his stead. According to Fujiwara, Kaguya acts like a baby when she gets a cold. Shirogane's heart beats fast as he imagines a cute Kaguya who's upfront about what she wants, but he shoots down the idea of all the student council members barging in on Kaguya when she's sick. So, Fujiwara proposes playing a game of Concentration to decide on who will visit Kaguya. Even Ishigami gets dragged into what becomes a serious battle!

After being forced to bail out on seeing fireworks with her fellow student council members, Kaguya shuts herself up in her dark bedroom. Hayasaka, Kaguya's maid, is worried about her mistress's depressive state. She tries to cheer Kaguya up, and when that doesn't work, introduces a plan to sneak out of the family mansion. Kaguya manages to slip past a pair of vigilant butlers and reaches the venue, but the fireworks display is already over. Kaguya is in tears, since she really wanted to see the fireworks with the others, but then she hears a familiar voice: "Then, I'll show them to you."

Shirogane is at the top of the race for the student council elections according to the latest predictions, but he is concerned about Miko Iino, a first-year who is trailing close behind him in the race. His competitive streak flares up when he has a conversation with Miko during her election campaign and finds out that she has been at the top of her class as well as an eloquent speaker. Fujiwara plays the role of the peacemaker while tensions mount between the two rivals, but she is caught off guard when Miko asks, “Will you be my vice president if I’m elected as the student council president?”

Ishigami has a biased opinion that "Guys who wear boxers are all man whores." Kaguya takes his words to heart and is dying to know what kind of underwear Shirogane is wearing. She tries to come up with different strategies so that she can take a peek at his underwear without it seeming weird, but all her ideas are too naughty. She decides to ask him directly what kind of underwear he likes, but Shirogane misunderstands the question and thinks she is asking him what kind of lingerie he is into. Shirogane starts to imagine the kind of underwear that he wants Kaguya to wear.