Yoriichi Tsugikuni

Yoriichi and kokushibo have swapped with tanjiro and nezuko so yoriichi is the demon slayer and kokushibo is the good demon kokushibo can shrink or grow in size he has six eyes kokushibo wears a purple and black hexagonal patterned nagagi kimono and black umaori styled hakama pants tied with a white uwa obi long spiky black hair with red tips tied into a ponytail with bangs reaching only the sides of his face each one of his eyes have yellow irises and red flesh sclera that have black straight lines diverging from each iris kokushibo also has a bamboo muzzle on his mouth and he has sharp fangs yoriichi his brother wears a red haori with black hakama pants over an orange kimono and a black nichiren katana at his waist that turns red in battle and hanafuda earrings yoriichi also has long black hair with red tips ties into a ponytail and bangs only reaching the sides of his face yoriichi also carries a large rectangular prism box on his back to be able to carry kokushibo around with him