Maria Watches Over Us: Printemps - Don't Tell Mother Maria.
Maria-sama ga Miteru: Haru - Maria-sama ni wa Naisho. · マリア様がみてる～春～マリア様にはないしょ。
Synopsis
A series of chibi-style shorts included with the Maria-sama ga Miteru: Haru DVD releases.
Studios: Studio DEEN, The Right Stuf International
Source: LIGHT_NOVEL