RyuGin
hmm I don't see why he would have to start from the biting of chapter 1 having the choice to pick any time of any chapter, idk for us readers it will make it a little bit more boring would be nicer if he entered whe he was already out of the east blue, and then he would fumble around do some stuff, change world and then came back create chaos and be happy here and there maybe go to avatar show why a real firebender is and come back ahahah