In a world separate from the humans is a place called Chou Shinkai. In this world lives super beings called Hikaribito. However, among such people are those who commit crimes. Such people are known as Kageribito. The ruler of Chou Shinkai is the Shinkai King. There are monsters in Chou Shinkai called Magii. When Magii appear in the human world, they can be seen by people with strong spiritual senses. Since ancient times, Magii have been called mononoke or youkai. Hikaribito Gou and Navi travel across Chou Shinkai in their ship, the Bunba, to deliver the Kageribito to the land of exile. But when the transport mission goes wrong, Gou must gather a team of five brave people before the 1000 soldiers arrive in 100 days.

Japanese-American track star Mizuki Ashiya transfers from a school in California to Japan, but not to just any old school. The school is Osaka High School—an all male high school! Mizuki Ashiya must disguise herself as a boy, all to get closer to her hero, Izumi Sano, a high-jump athlete who attends Osaka High. Now with short hair, flattened chest, and deeper voice, Mizuki becomes roommates with Izumi Sano, but trouble soon starts to brew. Izumi Sano discovers by accident that Mizuki is a girl and falls in love with her, but Mizuki is unaware of the fact. Complicating things, fellow classmate Shuichi Nakatsu starts to develop feelings for Mizuki, unaware that she is a girl!

Takeshi Hongo is a promising young man with a passion for motorcycle racing. However, his dreams are suddenly ruined when he gets kidnapped by Shocker, the evil secret organization planning to dominate the world. After being remodeled into a cyborg, Takeshi escapes and swears to protect the world from the inhuman monsters.