Is Baka to Test to Shoukanjuu: Mondai - Christmas ni Tsuite Kotae Nasai hentai?
English title: Baka & Test: Christmas Special
No
Rated PG-13 (Teens 13 or older) on MyAnimeList and not tagged as Hentai.

ONA · 2009 · 1 episodes · PG-13 - Teens 13 or older
Comedy, Romance
The cast of Baka to Test all get together and tell us what Christmas means to them. Joy!
View on MyAnimeListShare
Check another title