Ten years ago Fujiwara noticed he had a power to see multicolored auras surrounding the person's body. Ever since then he's been having a weird dream about a war with cats. Then one day a mysterious girl falls on top of him...
Illyasviel von Einzbern is a normal schoolgirl in Japan. She lives with her overachieving nice guy older brother Shirou Emiya and her two maids, her parents are perpetually out of the country, and she has fanciful dreams of using magic to make her dreams of love with Shirou come true. Enter fierce rivals Rin Tohsaka and Luviagelita Edelfelt, two Magi who have been sent to Japan by Zelretch the Wizard Marshall, Master of Parallel Worlds, with the powerful sentient Kaleidosticks to collect the mysterious Class Cards and clean up their mess. After getting fed up with their constant infighting, one Kaleidostick, Magical Ruby, senses Illya's fleeting dream of magic and leaves Rin for her, tricking her into becoming a magical girl. Now Illya is being forced by Rin to collect the dangerous Class Cards in her place. But perhaps more dangerous still are Illya's own mysteries that may have unknowingly attracted Ruby to her.
High School freshman Kōtarō Satomi wants to start a new life living alone in the tiny Room 106. That lonesome life is immediately broken by the invasion of a group of mysterious girls who all claim Room 106 belongs to them one way or another.
An art student named Jin Mikuriya carves a statue from the wood of the Kannagi tree only to have the statue come to life in the form of a goddess, who has now taken over the statue. He and "Nagi" work together to destroy the impurities that are gathering in the town.
Hino Akiharu lost his parents when he was small and was adopted into his uncle's family. But he noticed his uncle is after the inheritance of his parents, so he decides to enter a boarding school, Hakureiryou high school. However his delinquent boy-like appearance frightens the girls, who make up the majority of the students. Being unable to get along with the classmates, Akiharu meets his childhood girlfriend Saikyou Tomomi.
The Krakozhia Dukedom and the Grania Republic are at war, and high school student Sōhei Yano wants no part of it. But when two Lieutenants show up in tanks at his door, his life becomes an exercise in dodging stray bullets!
Asahioka Branch School, a combined elementary and middle school in an isolated village, has only five students total, four girls and one boy. The girls are best friends, and pass the season with traditional activities like harvesting mountain herbs and fishing.
Living on the shadow of his prodigious younger sister, Kyousuke Kosaka conducts a normal lifestyle until he accidentally finds out that she hides a secret. In addition to being smart, pretty, and popular; Kirino Kosaka is also an obsessive consumer of anime and eroge (adult computer games). After being assured that Kyousuke is committed to not mock her and keep this concealed from their parents, she starts to share a bit of her world with him. Kirino faces several problems as she tries to keep the appearances and balance her exemplar school life with her hobbies. Her brother then becomes a crucial ally while dealing with all the difficulties that lie ahead.
Kazuya Maeda is a high school student who has received a digital camera from his father. Motivated by this new hobby, he enters the school´s photography club. This gives him the opportunity to see several new perspectives towards the girls near him.
Squid Girl has come to the land from the depths of the sea to conquer humanity for its pollution of the ocean. Unfortunately she ruins the first house she uses as an invasion base and has to work to pay for repairs. Of course, she can't overcome the Aizawa sisters who manage the house, so who knows whether she can subjugate humankind.
Sakamichi Onada is a wimpy high school freshman who loves anime. He initially wants to enter the anime club, but winds up joining the cycling club after meeting two classmates who are already famous cyclists. He undertakes the grueling training to compete in races, and discovers his own hidden talent in cycling.
Right after starting middle school, Akari Akaza joins the Amusement Club which is composed solely of her two childhood friends, Kyouko Toshinou and Yui Funami. Chinatsu Yoshikawa, Akaza's classmate, becomes a member after finding out about the dissolution of the Tea Club. The Amusement Club, situated at the tea room facility since the Tea Club disbanded, has no clear purpose, being free for the girls to do whatever they want.