Becoming a Demon and Traveling to Another World

After traveling through time, I was adopted by a man known as the "Fighting God." I possess powerful magical powers, yet I'm completely unable to control them. But no matter! The portal to the other world is activated! Journey to a new world, becoming stronger while searching for the secrets of time travel. First World: Is it wrong to look for encounters in a dungeon? PS: I'm a complete newbie, and the writing and plotting in the first part were terrible. I'm learning from your feedback and slowly improving!