In a world where humans coexist with androids called Neans, a group known as the Immortal Nine rises up against society. Tasked with disposing of the revolters, a Nean named Rouge Redstar (aka Metal Rouge) and investigator Naomi Orthmann head to Mars to track them down…but first, Rouge wants some chocolate.

Takashi Toono was unsure what to expect when he transferred to Morimori Academy, a private all-boys boarding school located deep in the mountains. However, it's no different from any other boys' school, and since he entered halfway through the year, he feels like an outcast—until the bright and friendly Kyousuke Yaguchi introduces himself. Due to the school's compulsory club policy, Toono chooses to join the low-effort "Photography Club," but the club is not what it seems. Nicknamed the "Yarichin Bitch Club," its members offer sexual services to pent-up boys at the academy—for no reason other than a love of sex. What's worse is his monthly sex quota—and the punishment for failure is severe: the club will forcefully take his innocence. However, as time runs out, Toono is left mortified and out of options. At Toono's side throughout his ordeal is Yaguchi, as well as Yuu Kashima—a fellow transfer student and club member who shares Toono's predicament. While the first years in the club struggle with their sticky dilemma, the club collectively has to deal with sex, secrets, and even stalkers! [Written by MAL Rewrite]

The story follows the school life of the three girls, Yuzuko, Yukari, and Yui, who join their high school's Data Processing Club. The odd friendship between the three make for wacky humor in even the most mundane of events.

Naru Sekiya is an average 14-year-old girl with average intelligence, average athleticism, and average talents. She once had hopes that starting high school would change all that. Unfortunately, the reality could not be further from the truth and she remains a wallflower. Why can't real life be like fairy tales where a handsome prince lifts a poor girl from obscurity and transforms her into a dazzling princess? Her average student life changes when she meets a blonde girl dancing on top of a gate to a shrine. Naru assumes the girl is a fairy, but it turns out she's just a regular girl, too. But it also just so happens that she's a transfer student named Hana from America who fell in love with yosakoi, a type of dance, and came to Japan with the intention to start her own club! Excited that she's classmates with the girl she met the night before, Hana tries to recruit Naru to become the first member of the brand new yosakoi club. Too bad the thought of dancing in front of everyone terrifies her! Can Hana convince Naru to join the club? Will Naru fall in love with yosakoi? Find out in Hanayamata!