OVA bundled with the 14th manga volume. Story about a joint practice session between Izuku's class and Isami High students at Yuuei Academy, takes place after the field training arc in the second season.

Peach Girl is about an average high school girl, Momo Adachi, who everyone thinks is a beach bunny/slut because of her tanned skin. The actual reason she is so tanned is because she was on the swim team and tans very easily. She likes a boy, Toji, who she heard only likes non-tanned girls. This causes her to question who she is and have low self esteem. She spends a lot of time trying to remake herself into the girl she believes he wants; however, she has a friend, Sae, who likes to go behind Momo's back and make her life terrible, mostly by trying to take Toji away from her. All the while there's another boy, Kairi, who is in love with Momo. (Source: ANN)

Unaired 13th episode of Boku wa Tomodachi ga Sukunai.

Yoshida Chizuru is the sexiest co-ed in her class. Secretly, she's been appearing in TV commercials—despite the fact that students are forbidden from working. But one of her professors has uncovered her secret and hopes to use this information to his advantage. Yoshida's got plans of her own, and has no intention of giving up her acting career...