Maria Holic - Season 2 Episode 12 Kanako's Birthday
Overview: It's August 31st, Kanako's birthday. Her classmates, Ryuken and the seniors, Shizu and father Kanae plan to make different parties for her, but at her birthday, she doesn't find anyone. Trying to run away from the expanding seaweed, she ends up at the church, where everyone has made a party for her.