Bokutachi wa Benkyou ga Dekinai: Nagisa ni Usemono Arite Senjin wa Enzen to [X] Suru
Genres: Comedy, Romance
Type: OVA, Episodes: 1
Aired: Nov 1, 2019
Studio: Silver, Arvo Animation
Source: Manga
Rating: PG-13 - Teens 13 or older
Synopsis:
Bundled with the limited edition volume 14. 

The episode adapts chapters 48 and 49, which follow Yuiga and Asami going on a fake date, and Yuiga encountering his teacher Mafuyu Kirisu after she accidentally loses her swimsuit top.

(Source: MAL News)