Tanjiro is a demon slayer, he became a demon slayer to turn his sister, nezuko back into a human by finding Muzan, he is kind and up-beat. Nezuko is a demon, she travels with Tanjiro and can't talk due to her having a bamboo muzzle on, she hides in a box during the day, so she doesn't get burned due to the sunlight, and she likes to sleep a lot. And when she is in a fight, she turns into her demon for