The Blue World, which symbolizes reason, is under constant attack by the creatures called the Nightfly O'Note originating from the Red World, symbolizing instinct. Akira Asagi, the 17-year-old protagonist who is a researcher at Blue World, is nominated to lead the war at Ryuukyuu LAG, a proud defense facility on the islands of Ishigaki and Iriomote. She meets the sixth combat unit "IS," which was formed four years after a fierce battle that annihilated the fifth unit. Akari must lead these six riders, also called the Scared Rider Xechs, to fight against the other world while at the same time deepening the relationship among them.

Japanese anime television series

Yani is a catgirl with a seriously bad smoking habit. She smokes so much that her apartment smells like ash and is littered with cigarette butts—and plenty of other trash! Every time she tries to quit, she becomes weak to the cravings and gives in almost instantly. Will she ever get her life together, or is she doomed to live as a chainsmoking slob forever?