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...
Oh, I think my sister's keychain 
somehow ended up in my—
أظنّ أنّ حمّالة مفاتيح أختي
...دخلت حقيبتي بالخطأ
Ah, der ist von meiner Schwester.
Muss irgendwie in meiner Tasche gelandet sein!
Ah, debe ser el llavero
de mi hermana que se…
Ah, debe de ser el llavero
de mi hermana que se…
Oh, c’est le porte-clés de ma sœur !
Oh, penso che il portachiavi di mia sorella 
sia finito per sbaglio nella mia bor—
Ah, isso é da minha irmã mais
velha, eu trouxe por engano...
А, похоже, в моей сумке случайно
оказался брелок сестры...