Ichika and Rio go to Okinawa for a school trip. Masuda ends up coming along with one of his seniors at work to be their camera guy on their trip. Rio had been sending pictures to Ryo from their trip, which ends up reminding Ryo of Kai and he gets worried. Meanwhile, Ryo ends up picking up an anime keychain that his coworker Matsushima Arie had dropped and she asks him to not let anyone at work know about her hobbies, and he has something nice to say in return...

Ryo's coworker Arie has been working as long as he has and is a secret anime nerd. They get a little closer after they talk about some anime. Arie starts to realize that she has feelings for Ryo and invites him out to dinner with some other coworkers. Meanwhile, Ryo drives Rio to Ichika's house after he finds out she's spending the night there. Ryo gives Ichika's mother various presents, making her ask him to come inside, but...

Arie tells Ryo that even if she knows that he has a crush on someone else, she wants to do everything she can to get him to like her. Ryo considers the fact that if he went out with Arie, society wouldn't care, but if he were to actually date Ichika, their age gap may end up hurting her, so his heart starts to waver. But then, Masuda who was over at Ryo's apartment to have some drinks with him, also tells him he needs to stop being selfish and be a better person. Meanwhile, Ryo's father finally returns home, and...