After losing his family due to a fake hero Izuku wanted to find him to kill him. During the time after Izuku was alone a guy and a women saw Izuku all alone and decided to adopt him as Izuku adept to the both of them as he actually gained the power that Deadpool has.

Ship
Izuku x harem(short)

Yep I'm adding Ibarra to it

Parents

Deadpool and Domino

Yep both Deadpool and Domino taught Izuku how to use weapons and fight with and without weapons as well

Dekupool: about damn time Izumomolover did this story as an idea