

マリア様にはないしょ。
A series of specials included on the Maria-sama ga Miteru 4th DVD releases.
Keep it a Secret from Maria-sama has 11 episodes.
Keep it a Secret from Maria-sama is currently finished airing.
Keep it a Secret from Maria-sama was produced by Studio Deen.
Keep it a Secret from Maria-sama aired Mar 25, 2009 to Aug 21, 2009.
Keep it a Secret from Maria-sama is based on a Light novel.
11 episodes
Ranked higher than 79% of all anime on AniTome (out of 19,551)
More popular than 56% of all anime