Because he want to reive his parents, he become a monster-tamer ...
Well, how i start with this ? Even the start of the story is absurt, illogical, childish, and boring in the same time. No need to even think about reading it and find something good. You know right for the start it wil be one of the many, many copy-past-use-plot-rope and face-slape with no-reason watsower of type of boock.
In other words, pass you way, this is not only full bags of b*lshit but also complet wast of time.