Maria Watches Over Us 4th Season is a tV series anime that premiered in winter 2009, produced by Studio DEEN.

About the production: the story comes from a light novel, there are 13 episodes of about 25 minutes and its current status is "finished".

Its main genres are drama and slice of life, with themes such as School, Ojou-sama, Yuri and Coming of Age.

On AniList, Maria Watches Over Us 4th Season has an average score of 75%, a very good score, and appears on 5,226 users' lists.

The franchise continues in or follows from: Maria-sama ga Miteru: 3rd Season OVA.

Life for the young women at Lillian Girls’ Academy couldn’t be more exciting! The Yamayuri Council is working on a theater production with the all-boys Hanadera Academy, and the school festival is quickly approaching. But Yumi’s duties pale in comparison to the task assigned to her by Sachiko: choosing someone as a petite soeur! Will she be able to handle the pressure of such a monumental decision, or will Yumi crumble under the weight of the Council’s — and Sachiko’s — expectations? (Source: Maiden Japan)

Official synopsis from AniList.