Kny but the roles are Reversed/swapped!!! you were walking out in the forest and the hashira’s are training in the forest (By the way, this means the upper are the slayers and The hashira are upper moons or lower moons  the main character (tanjiro) is Nezuko and muzan is the Leader of the hashira Nezuko is a slayer And the other hashira are Upper moons now Meaning the main leader is of the upper moons is rengoku) By the way, you are still walking in the forest