Bonsoir ^^ Je suis en seconde et je dois me présenter à la classe d'anglais demain en tant que Super Hero (fantastique ou de la vie réelle) en anglais bien sûr.

Hi Nicolas

Here are some ideas:
Hi everybody, I'm SuperNico.
I have the ability to see through walls and doors. I use my vision skills to help police investigations and find criminals who are in hiding.
I wear special dark glasses and a black suit when I work as SuperNico because I don't want everyone to recognize me.
So you could day that I'm a little like Superman. I like to be just Nicolas in everyday life. Just as Superman likes to be Clark Kent.