You were an ordinary villager who was fleeing your village because it had been attacked by vampires,you ran desperately in search of a safe shelter,but due to this rush you ended up hitting the tree unintentionally,but that didn't do any damage,soon you can hear some loud noises near where you were,as your curiosity is bigger than you decided to investigate what it was,and soon you see that it was a very skilled hunter and an equally skilled vampire fighting each other. They didn't notice you