Supergirls

There are plenty of stories about superheroes. Most of them live in New York and have amazing superpowers that they've acquired in fascinating ways - Superman came from another planet, Spider-Man was bitten by a radioactive spider, Captain America was enhanced by mysterious technology, and Wonder Woman is even the daughter of a god and the queen of the Amazons. When your dad is a god, or you get a radioactive mutagenic serum, it's actually pretty easy to be a superhero. It's just that there are superheroes who don't have any superpowers at all, or a lot of money like Batman or Ironman to make cool suits and equip themselves with a lot of awesome tech gadgets.

And it is about such superheroes that our adventure story is about. Sorry, it's actually about superheroes. Because it's two girls.
 

And believe us, they would give the Hulk himself the shivers when they get going.