" What would happen if Kamen Rider Kuuga were the one to save Saber, instead of Shirou? " Yusuke is Kamen Rider Kuuga in his own universe, but he is suddenly dragged into an unknown world where the bloody conflict known as the Fifth Holy Grail War is taking place. "How will he survive in a world full of ruthless mages and ancient horrors....or will the endless bloodshed force him to become the very thing he fights against?" Or at least, that's what he thought. Until he realizes his very presence is unraveling the timeline itself, spiraling into a dark, chaotic chain of fate far worse than anyone could have imagined. ** Yusuke(Kuuga) is basically Au Yusuke Godai, maybe from Agito universe who know** **Fanfiction for fun**

A/N: Izuku Yagi The son of pro Heroes 1.no All-Might and 7.no Green Telekin... the age of 4 he wasn't able to activate his quirk... which made him a laughing stock... whichever one thought that he was weak.. whoever he was able to unlock quirk that no one else has never even seen before...