@whosnzhq so basically Yoon was bitten by the yellow haired dude who's a tiger and is now under his control. So according to google "Chang-gwi is the soul of a man who died from a bite of a tiger. He is said to be a slave to tigers when he became Chang-gwi, and always adhering to the tiger. In order to escape this fate, the Chang-gwi visits the victims, especially its families and relatives in the past."