During their summer vacation at the beach, Uka spontaneously goes on an outing with Ayumi, Serina, and some classmates. Despite initial uncertainty (such as wearing a swimsuit), Uka shows courage for the first time when she encounters Remi, a former bully from middle school. She openly confronts Remi, overcoming old fears and impressing her friends in the process. Meanwhile, Serina clarifies her relationship with Kai: she confesses her past feelings, but Kai rejects rekindling a romance, emphasizing that his priorities lie elsewhere.

Uka reflects on her growing independence and uses her phone for the first time to communicate with Ayumi and Serina. In doing so, she realizes how much she has been striving for Kai’s attention. A chance meeting with Kai at a café leads to them exchanging phone numbers, with Kai encouraging her to become "more fearless" and to reach out to him if she faces any problems. The episode ends with a glimpse into Uka’s changing family life: her parents proudly notice her newfound independence, while Uka senses her world rearranging itself through friendships and self-confidence.

The episode highlights Uka’s personal growth—from a shy girl to a brave young woman—while also hinting that Kai’s actions are increasingly aligned with her, as Serina learns to leave her past behind.