Chapters 3-12 of this light novel detail the immediate aftermath of a sexual encounter between the protagonists, Takashina Sho and Takanashi Aoi, who are childhood friends and now university students. The initial chapters are dedicated to the awkward and emotionally charged process of cleaning up and coming to terms with what happened. Sho grapples with regret and the overwhelming reality of their intimacy, while Aoi, though embarrassed, tries to maintain a semblance of normalcy. Their shared experience leaves them both flustered and hyper-aware of each other, leading to moments of blushing, stammering, and internal monologues filled with disbelief and a newfound understanding of adult relationships. A delivery person's arrival further heightens the awkwardness, forcing them to interact in their disheveled state.
The narrative then shifts to Sho's university life, introducing his boisterous and somewhat crude childhood friend, Suzuki Tatsuya. Sho confides in Tatsuya about his lack of sleep, but Tatsuya misinterprets it as Sho covering for a junior or senior at his part-time job as a tutor. Sho, relieved by the misunderstanding, allows Tatsuya to believe this, further highlighting his internal conflict about his relationship with Aoi. Tatsuya, despite his rough exterior, shows a surprisingly supportive side, offering to listen to Sho's troubles, which turn out to be about his gambling losses. Sho, in turn, agrees to buy him lunch, demonstrating a complex dynamic of friendship and obligation.
Meanwhile, Aoi is also struggling with the consequences of the night before. She confides in her close friend, Mizuki Shiina, about her newfound feelings for Sho, admitting to a sudden infatuation that was amplified by a fortune-telling prediction. Aoi's attempts to confess her feelings are repeatedly thwarted by her own awkwardness and a tendency to deflect, culminating in a bizarre, anime-related outburst to avoid the topic. Mizuki, though initially confused and slightly exasperated by Aoi's behavior, eventually offers advice on how to proceed with dating Sho, suggesting a slower approach to build his affection.
The story then revisits Sho and Aoi's interactions, showing them meeting again in Sho's apartment. Aoi's choice of revealing clothing further exacerbates Sho's internal turmoil, as he struggles to reconcile their recent intimacy with her seemingly innocent demeanor. They decide to cook and talk, but their conversation is derailed by the deliciousness of Sho's homemade fried rice, a skill he attributes to his family's former restaurant. This shared meal leads to a moment of reflection where they acknowledge the awkwardness and the need to address what happened.
The climax of these chapters arrives when Aoi, after much internal debate and a failed attempt to confess, finally blurts out her feelings for Sho, admitting she likes him. Sho, caught off guard and still grappling with his own feelings and the implications of their encounter, struggles to respond. He admits he's unsure if he loves her, describing his feelings as fifty-fifty. Tatsuya, when consulted by Sho, advises him to take things slow, given his uncertain feelings and their history as childhood friends. Simultaneously, Aoi, after a disastrous attempt to plan a date with Mizuki, ends up booking an overly ambitious outing, further complicating her romantic endeavors. The chapters conclude with both Sho and Aoi navigating their complex feelings and uncertain future, with Aoi determined to pursue a relationship despite her past impulsiveness and Sho still trying to process his emotions and the events that have transpired.
