After the destruction of their hometown, childhood friends Kafka Hibino and Mina Ashiro make a pact to become officers in the Defense Force—a militarized organization tasked with protecting Japan from colossal monsters known as kaijuu. Decades later, the 32-year-old Kafka has all but given up on his dreams of heroism. Instead, he cleans up the remains of the slaughtered kaijuu after they are defeated by valiant soldiers—including Mina, who has successfully achieved their shared goal. Upon meeting his new coworker, Reno Ichikawa, Kafka faces a mirror of his past self: an ambitious young man whose one desire is to fight as a member of the Defense Force. Unfortunately, the two are soon involved in a freak encounter with a rogue kaijuu. Though Kafka demonstrates his innate heroic nature and rescues Reno from certain doom, he is left gravely injured. While both men recover in a hospital, Kafka is seemingly attacked by another one of the beasts. As a result, he gains the ability to transform into a humanoid kaijuu with the strength and powers of the massive monsters menacing Japan. Dubbed Kaijuu No. 8 by the military, Kafka resolves to use his newfound gifts for the greater good. Tied together by mutual respect, Kafka and Reno set out to join warriors like Mina at the forefront of the Defense Force.

In recent years, creatures known as Kaii have frequently attacked cities and wrought destruction. Exterminating these monsters quickly became a popular and well-respected profession, carried out by magical girls. More than five hundred magical girl companies, ranging from small ventures to large corporations, offer their aid to those who need it. Kana Sakuragi is a studious college graduate struggling to land a job despite attending numerous interviews. But when a Kaii attacks during her latest interview, she finds herself assisting the magical girl responding to the crisis. Although she lacks battle experience, Kana relies on her exceptional memory and knowledge to help subdue the monster. Hitomi Koshigaya, the headstrong magical girl who faced the Kaii, recognizes Kana's potential and invites her to join Magilumiere Magical Girls Inc.—the startup where Hitomi works. Wishing to make a difference, Kana accepts the offer to become a magical girl herself. While Kana may not be suited for the corporate world, it soon becomes clear that her true calling is to rise as one of the most talented magical girls in existence.

With its flickering streetlights, moldy back alleys, and noisy populace, the Second Kowloon Walled City, despite the squalor of its already-demolished predecessor, evokes a special kind of nostalgia that its residents find endearing. Amidst the walls of this fading yet beloved landscape lives Reiko Kujirai, a 32-year-old realtor deeply in love with her coworker, Hajime Kudou, who is two years her junior. Though they have their differences, the two get along well enough to experience the joys of the walled city together. However, everything starts to fall apart when Kudou, half-asleep, suddenly kisses Kujirai—seemingly reciprocating the feelings she has yet to confess. But when Kudou explains that he had mistaken her for someone else, Kujirai finds herself drawn into a series of events that lead her to a past she cannot remember.

The Hana Ningyou Project (Flower Doll Project) exists to artificially create the perfect idol by implanting a special flower seed inside a body. The franchise follows the growth of young men who dedicate their lives to the project. (Source: MU)