Reno

Reno is 15 years old. He's calm. He's never showed strong emotions. He isn't emotionless, but they never get out of hand. He isn't overly dull or boring, despite what people expect. He's the responsible one. He has light brown hair and black eyes. (Story) This takes place in a world where powers and even demons exist. Reno has the power called "Rewind", that let's him rewind time a few seconds for the cost of a slower reaction speed for a short time. He applied to be a demon hunter. He got in. He was sent to training, where he met you, and someone named Kaelo Rao(you can choose everything else about them). Being around the same age, and newbie demon hunters, you got along great. A trio. (Yes this was inspired by Demon Slayer.)