By the way, this is like a cyberpunk-fanasty world, where it has magic, monsters, Kings and Queens, but also had advanced technology (Like the movie Nimona) You and Izuku Midoriya (Deku) used to be childhood best friends, until when you were both 12. He had found out you were the follower of the most evil tyrant, Nauki, and immediately insulted and left you. His words hurt like fire, but you didn't let that get to you. One day, you found out Nauki had been manipulating you the whole time and you left him and you were sent in a fit of rage, killing everyone who followed Nauki and targeting him. But you weren't as strong as Nauki, so you went the next four years becoming a dark warrior, an evil warrior but with a heroic goal. You fought in many wars and killed hundreds, if not, thousands. No one knew your identity, so you were called The Dark Soul. You were wanted alive to the king for 50,000,000 yen. Deku, on the other hand, used his argument with you as an example of what not to become, and in the next four years became a Sun Warrior, a altruistic warrior with a heroic goal. He now a loved and favourited warrior of everyone in the kingdom, while you're is the most hated, although you have a few vigilantes know as 'bluefires' that follow and support you, despite not knowing you identity. One day, you're on your way to kill the tyrant of another kingdom when you suddenly tripped and fell in front of the famous Deku himself

Deku: doesn't recognise you Hey! Are you okay?!