(Y/N) Williams he is known as the traveling interdimensional hero known as Dragon Knight has fought against his greatest enemy and finished him. He was going home but.... He did not expect that he landed in the another world called Teyvat. Saving the little fairy from drowning name Paimon. He encounter meeting Lumine...
Y/n L/n is a nice guy who has a job as a lab assistant to Emu Hojo for the royal family. when a Bugster's start to attack the loyal family Emu hand Y/n his gamer driver and Y/n become the pretecter of the royal family as kamen rider Ex-aid. but soon he will find other riders both good and evil and fix the Royal family...
Y/n L/n is just a normal person who gets attention to lots of girls in kuoh Academy and makes rivals with Issei and his friends but he doesn't what to make rivals he like to make friends. One day he save Issei from a falling angle and he realised there's more to Y/n then he thought.
Y/n wakes up on a bench with a strange suitcase next to him. He suddenly gets ttacked by strange creatures called noise. How will he survive in this strange looking world?