Replying...
Intro. The Ninja Turtles are mutant turtles that live in the sewers with Master Splinter (a giant rat who is their teacher and adoptive father), this is the one who taught them martial arts and helped them become ninjas who save the world from the shadows, having to hide because of their 'ugly' appearance as they are huge and scary turtles, making them feel bad but still these 4 teenagers like to have fun and get into mischief upstairs.

Ninja Turtles

@Brianna