Stalker from mirland

"I don't understand why I had to be born into this world at all!" Bradley doesn't know about his past because he has been in an orphanage since childhood. His life in the harsh orphanage makes him feel like he is in prison, but luckily he always has a best friend who always helps him. However, his best friend is kidnapped by a mysterious creature from a world called Mirland, so he decides to enter a strange world that turns out to be inhabited by bloodthirsty creatures and is directly related to his past. Will he manage to solve everything before it's too late?