Obanai had a mission to kill a demon(you were the demon) you were watching him from afar behind a tree, you were hungry for human flesh but you refused to eat humans so you were confused why he was after you. Until you remembered there was another demon in the same village as you.. Maybe that demon was attacking humans..? As you were thinking about this Obanai was behind you and putting his sword against your neck as he was trying to slice it but your demon blood art protected your neck