Unrelated: Have now read (but not yet posted on) the new Antique Gift Shop and Vol 7 of Angel Diary. Couldn't help noticing that Yang's robes at the death anniversary were very similar to Green Rupert's, though they could both just be wearing funeral garb. In Angel Diary, the male lead asks his underling to get him some demon hunters, and the underling says he'll get in youch with Green Rupert. Though I have no idea how much Angel Diary's version will have to do with the folklore version, if he actually appears.