Identity Impersonator

A Secret Identity is one of the most important secrets a costumed superhero can have and the most carefully guarded.

When you get powers or trying to control them, they used some disguise so no one (especially their friends, family and love interest) can know who they are until o ready and can trust them. Sure, they're some bad people who can reveal their secret and some are not, because they have a good heart or just good keeping secret.

Here's why the heroes doing this to hide their superhero identity:
 * Don't want everybody to get hurt, kidnapped or reveal their secret until they're ready or just protecting them by random villains
 * because they're worried about how they will reaction
 * because they want to hide their powers from the world, so they won't be outcasts.
 * scared about their powers when they can't control yet
 * worried that the bad guys or the love ones can reveal their secret (sometimes they do which it depends on the story or comic book)

Examples

 * Batman/Bruce Wayne
 * Superman/Clank Kent
 * Spider-Man/Peter Parker