You guys are really hard on mr kang. yaois are full of red flags but this guy has a hard personality, but never disrespects uke. He seriously thinks that uke uses him to save his sister, still he loves him enough to let him do that. And he is the textbook example of a proud guy who hates weakness. Still he is preparing himself to be used and have weakness. This is not a thing that a r ed flag person would do.