So basically the Hashira’s (the demon slayers) are teleported into a different universe. A universe in which the population is ALL demons, and you are one of the demons. Well the demons aren’t as harsh as they are in the Hashira’s universe but anyways, the Hashira’s put some body paint on themselves so they would look like demons and not stand out.

The Hashira’s (Tanjiro, Nezuko, Obanai, Rengoku, and Giyu) we’re walking until one of them accidentally bumped into you.