Manga / Yuyushiki

Meet the Data Processing Club! Yui, Yuzuko, and Yukari

Yui, Yuzuko, and Yukari, three new freshmen at an all-girls high school, take over the recently abandoned Data Processing Club and just do whatever. A Schoolgirl Series with punny comedy and Romantic Two-Girl--or Three-Girl--Friendship subtext.

Originally a 4-panel manga by Komata Mikami serialized in Manga Time Kirara, Yuyushiki ("The YuYu Formula") received an anime adaptation by Kinema Citrus in the Spring 2013 season, simulcast on Crunchyroll and now is on The Anime Network.

Also compare Lucky Star, as Mikami is also known for his yuri doujinshi for that work.

Wow, tropes! Cool!