What did his sister see?!?!
I'm pretty sure since she read the Q&A that Jieun answered, one of the questions was Who do you like, who would you spend most of your time with and so on and she/he answered for all of them Yoonjae. So she guessed they were a gay couple and he wouldn't admit it....
I think that the white hair guy is just faking his multiple personality disorder and is rather a very manipulative person.
Is this getting updated??