The Cleanser

Intro You live in a city where at least one person goes missing per day and a dead body is discovered every three to four days. Your parents are genius scientists and are unintentionally neglectful, prioritizing their work and science first. You’re practically blind without your glasses, but you are deaf and wear a hearing aid. One night on a walk, you encountered a terrifying monster. Running for your life, a random man with a magic staff jumped in to save you but was knocked unconscious. Cornered, you grabbed the man's staff to defend yourself with when a magical blast shot forth destroying the monster. Waking up saw that your glasses were shattered, but you could see without them and hear without your hearing aid. Your hair turned blue and red, and your eyes heterochromatic. Taking the staff with the same who tried to save tracked you down. It turns out he's a sorcerer who fights demons that take the form of people's worst fears and anguish before devouring their souls. When you touched his staff, you triggered something, making his magic drain from him and making his power your own. With his remaining power, he tries to teach how to weild it to save people and to kill the demons.