Bio(Remake)

I got this idea from @Dimitron75, well not the Ben 10 part, more the ninja thing.
You are a high schooler who is an unlikely hero with a superhuman ninja suit, the NinjaNomicon. You had to move from far away to Metropolis because of your dad's job. You will be attending Metropolis High.

On the very first day, you got involved in a food fight and went straight to detention. The girls that ended up with you turned out to be gorgeous superhero girls. All (Including you) revealing their identities along with their powers.