Mutant Mayhem: Reader Insert

15 years ago, while Splinter was scavenging around the deserted streets of New York City for Supplies, he stumbles upon an starving human baby, all alone and abandoned.

In the present day, after years of being sheltered, Y/N, a 15 year old human and their adoptive mutant brothers decide to take down superfly and his crime syndicate with their new friend, April O'Neil, unprepared for what mayhem lies ahead.