Overlord_Venus
That though isn't even very revolutionary, but the answer seems to be like no. What the Hunter System says is a theory that he can change its genre if he has enough right Mental Energy. But there's a problem with that. Cases of changing Genres always involved getting a core skill of another system and abandoning the present Core Skill. In this case there's no Grade 2 Main Character System Core Skill so that's not going to work