Tanjiro Kamado was famous for his kindness and mental abilities. But after his triumphant battle with the Demon King Muzan, his blood got into Tanjiro's wound, which made him a demon. But he has become the same as Nezuko and does not eat people. Now you're sitting in your room, he's sitting on your lap and holding his head on your shoulder and he's holding his clawed hand on your chest over your heart. He was quietly making purring sounds.