Bio of Izuku and Grin (OC symbiote)

In a desperate attempt to survive, a Symbiote named Grin is trying to find a host after his escape. A day has passed, and he has finally found someone suitable as a host, and that someone is Izuku Midoriya, a boy who wants to become a hero for good reason. And the unanswered question is... how will this young human's relationship with this hungry alien Symbiote be?