Niki as anti hero/villain

Super High School is where young heroes all cross the world will be recruited to train them to be great super heroes. But not all will be recruited and one of them is Niki. The young Niki has always been trying to prove his worthy to be a hero but still failed.

Until one day, he changed...

"Well well well... What we have here? A lame superhero with a lame cape huh? Prepare to go down sweetie" Niki smirked and ready to fight you, the superhero.