Reili
He is 4 basically in logical sense even in that world such choices wont be made by him instead be handled by adults. So having gran ask for what he want to do now is like asking a 4yr old kid to how to live your life. Put yourself in that situation, would you ask a child of what does he want to do with his life after that tragical event?
I see, so since in fairy tail the dragon slayer magic is tought by dragons so the fire demon slayer magic took the 'experience' of a fire demon but it is rebellious and erupted earlier than usual due to 2 other powers capable of threatening it? as for the dragon i was more or less the same. Stroke my ego please also i recommend grand torino. Good overall training and speed /movement based training. You don't need one for all. In fact if MC is greedy it would be funny if Eve said. "You'll explode if you get the one for all."
I’ve been through a millennia of lives. I’ve been a craftsman, a merchant, a blacksmith, a beggar, a model, a superstar, an emperor, and any other profession you may think of. I have done it all. Now as I sit back and ponder upon life. I’ve realized there is one thing that you shouldn’t live without. Something that all should cherish and hold dearly. The ultimate purpose of life…. …..my story Dipper: The Apprentice….. Check it out!