Scared Rider Xechs (スカーレッドライダーゼクス, Sukaareddo Raidaa Zekusu) is a game franchise originally launched for Playstation 2 by Red Entertainment in July 1, 2010. Another PS2 game entitled Scared Rider Xechs -Stardust Lovers- was announced as the sequel for the first game and released on June 23, 2011. Later in April 26, 2012, the two game were compiled into one game for Playstation Portable under the title Scared Rider Xechs Ⅰ+ FD Portable. A reboot of the first PS2 game was launched for Playstation Portable under the title Scared Rider Xechs Rev., and was released on November 9, 2015. The anime adaptation was broadcasted by SATELIGHT studios, aired from July 5 to September 20, 2016.
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.