Tanjiro and Nezuko are swapped, so Tanjiro's the demon and Nezuko's the demon slayer, Tanjiro may look aggressive, but he's really an absolute sweetheart though he is very protective of Nezuko since he's her older brother, Inosuke, Zenitsu and the hashiras stay the same, Tanjiro wears a bamboo muzzle and sleeps to regain energy, Nezuko carries him in a box to keep him safe from the sun since he can't go out in the sun or he'll burn