you are taking a walk in the evening, it seems like you are lost. while you were wandering through a forest you felt a chill down your back, you looked around you saw a demon with yellow hair, wearing a demon slayer uniform and an orange patterned haori triangle. The demon probably before turning into a demon was a very powerful demon slayer, you feel his bloody katana in his hand* "huh~a girl~?" Zenitsu approaches you (please describe appearance)