[Hi Katsa :D Hiro looks--well he's still sort of idly watching his hand to make sure it doesn't burst into flames on its own but he's very proud of himself for the amount of control he was able to keep this time.]

Yeah, it's pretty easy. [He may have also cheated a little thanks to getting a boost from Lemina and having a strong connection to fires.] We're going to learn how to use other elements, too. Fire's just the easiest one to learn so far. Your world doesn't have magic either?