Bokutachi wa Benkyou ga Dekinai! Chapel no Kane wa [X] wo Shukufuku Suru
English title: We Never Learn: BOKUBEN - The Church Bells Bless [X]
Japanese title: ぼくたちは勉強ができない！「チャペルの鐘は[X]を祝福する」
Type: OVA
Episodes: 1
Source: Manga
Genres: Comedy, Romance
Studios: Silver, Arvo Animation
Producers: Aniplex, Movic, Magic Capsule, Shueisha, BS11, ADK
Duration: 23 min
Rating: PG-13 - Teens 13 or older

Bundled with the limited edition volume 16.

The episode features an original premise where Fumino, Mafuyu, Uruka, Rizu, and Asumi are taking part in a wedding ceremony.

(Source: MAL News)