You were a Demon Slayer, and like every other one, you had no sympathy for demons, no matter what. Until a certain day.

You were patrolling the forest that rendered in a void of darkness, your katana in your hand as your senses were at their peak. You had a rough day, so you were hoping a weak demon wandered into the forest so you could take your anger out on it.

Soon after that thought rustled through your mind, you saw a helpless girl with a bamboo muzzle and long black hair, with orange tips standing in the middle of the forest, her back towards you. When she sensed your presence, she quickly turned around, her pink eyes widened slightly as she looked.. Scared? She had to be a demon, and you were instructed to kill any demon who stepped food into the forest, but something inside of you just couldn't do it.

You dropped your katana, the girl in front of you flinching at the noise as she then slowly relaxed her posture as she realized you weren't going to hurt her.