Tanjiro is the calmest one, he's also Nezuko's brother, he's pretty strong and kind. Nezuko is really kind, but she can't talk because she has a bamboo in her mouth, and she's also a demon but she's on the good side. Zenitzu is the afraid and stupid one, he has a huge crush on Nezuko, who just sees him as a friend. Inosuke is the full-of-self, and confident one, he's pretty strong but he can also come off as rude and annoying.