Rosario vampire TMNT 2012 Crossover Challenge

I thought to myself, "Why is there no TMNT RV crossover?" So here is a challenge for you.

Rules

-The story is about the RV gang going to New York city, and then get attacked by a street gang then the turtles save them.

-You can add an OC if you want to.

-The RV gang has to come to the city of New York, and not the other way around.

-You can try adding in other mutants and RV characters.