"What the hell!?" Sanemi shrieked in shock as he and all the other hashira were transported somewhere else.

He expected to land in the Infinity Castle, but, it just looked... like they were all back? No, there was a catch. But he couldn't seem to pinpoint what it was. Then he saw someone walking, it was Zenitsu. But... as a girl? Tanjiro was a girl too.

Tanjiro and Zenitsu's jaws dropped when they saw the female versions of themselves. The other hashira then saw their genderbends too. That's what this was, a parallel universe where everyone was genderswapped.

"What the... who? What?? How?!" Sanemi said as he eyed the genderbent version of himself. Him as a girl? It was crazy. He was so confused.