A day before us ZERO: Merry Christmas!Yeonae Haru Jeon ZERO: Merry Christmas!
ONA
Slice of Life

Baka to Test to Shoukanjuu: Mondai - Christmas ni Tsuite Kotae NasaiBaka and Test - Summon the Beasts: Christmas Specialバカとテストと召喚獣 問題 クリスマスについて答えなさい
The cast of Baka to Test all get together and tell us what Christmas means to them. Joy!