Masahiro Setagawa is a hopeless teenager who is often used by the neighborhood bullies as an errand boy. Defenseless, Masahiro knows that nobody will ever save him. However, his life drastically changes when he meets Kousuke Ooshiba, a man known as the "Bear Killer," who takes down neighborhood gangs. A year later, Masahiro and his former friend, Kensuke Ooshiba, attend high school, only to find that Kousuke is their math teacher. While the three grow closer, Masahiro starts to view Kousuke as his "hero," and Kousuke develops an urging desire to protect Masahiro. However, their normal lives take a turn when Kensuke's childhood friend, Asaya Hasekura, returns, seeing Kensuke as more than just a friend, much to his surprise. Will the three boys be able to live a regular high school life? Or will forbidden love keep them apart forever?

The young but feared sorcerer Zagan is a candidate to become a member of the 13 Archdemons—a group of the strongest sorcerers in the world—following the death of their eldest member, Marchosias. When attending the deceased Archdemon's estate auction, Zagan finds something he did not expect: love at first sight. The sorcerer impulsively spends all his money to take Nephelia, a rare elf slave, back to his castle. Given the girl's mysterious and troubling past, there is a lot for Zagan to uncover about his new companion. However, Zagan's lack of experience with the unfamiliar feeling of love leads to many awkward moments between him and Nephelia, whom he calls by the nickname "Nephy." As the two grow closer and get more comfortable around each other, it becomes increasingly evident that Nephy's feelings might not be so different from Zagan's.

Himeno is a sweet, shy little centaur girl. In her world, everyone seems to be a supernatural creature, and all her classmates have some kind of horns, wings, tails, halos, or other visible supernatural body part. Despite their supernatural elements, Himeno and her best friends, Nozomi and Kyouko, have a fun and mostly normal daily school life! (Source: MangaHelpers)

With the invention of anti-gravitational shoes known as Grav-Shoes, the ability to fly freely has become an everyday experience for the people inhabiting a four-island archipelago south of Japan. This invention has brought the people new ways of living and also a new sport known as "Flying Circus," where participants gain points by either touching floating buoys or their opponent's back. The gullible and clumsy Asuka Kurashina, newly transferred to Kunahama High School, enters this world of flight unknowingly when she is able to pull off a difficult maneuver the first time she participates in a Flying Circus match. Eventually, this leads her to join her school’s Flying Circus club. Led by their coach, Masaya Hinata, their members consist of the experienced Misaki Tobisawa and her overprotective friend, Mashiro Arisaka. Ao no Kanata no Four Rhythm follows this rookie group soaring high above the skies and toward their dreams, armed only with their unwavering passion against an uncertain future.