The Demons Quirk(BNHA fanfic)

Deku is a young student at UA highschool who strives to become the number one hero.His quirk one for all consist of 5 quirk each with there own specialty.Izuku has controlled two quirks already ,one for all and black whip.but there is a quirk which his predecessors forbid him from using ,the demons wrath, a quirk which was deadlier and causes the host to go berserk and requires lots of training before use ,deku promises to not use it until he controls it but what he didn't know was that the quirk activates through emotion mostly by negative emotions like hatred, jealousy,rage,etc. But if midoriya is able to control his demonic abilities he can use any quirk at will, with this new power ,will midoriyas future as a hero stray from its path or will it bring new opportunities