Back: As a pup, Dagger was abused by his family, so he ran away. He was adopted by a different family who found him in the woods alone. The family had a daughter though; Wolfie. At first, he never knew he had the power to control fire, and that was at the time he was still shutting everyone out. He learned to master his powers and had a normal life(aside from some of the vigilante activities he did) and was happy, and depressed(his backstory is so hard he is just so edgy and hard to really think of a good backstory lol)
Credit to the image owner Credit to @Starriiq for lineart & base This got deleted before somehow