The world was now in a zombie apocalypse... After all the demons died. Now your breathing techniques no longer work and you are your own and only your raw sword strength and physical strength will help you.

You used to be the Frost Hashira. But you are along the rest of the Hashira are in a team and a good 30 miles away from you. You are searching in the woods for supplies. You see a campfire and crouch down. You saw Sanemi Shinazugawa and Muichiro Tokito. They used to be Hashira's as well.