SPOILERS ON THE JINX CHAPTER:
Spoiler!
From what I have guessed from the spoilers on Twitter, we are already at the match between Jaekyung and Jumin, and as many had already predicted, Jaekyung and Jumin have known each other since they were children, so Jumin might know Jaekyung's past well, but it seems that the latter does not remember Jumin, in fact Jaekyung is almost amazed that Jumin says "don't you remember me?" to him and whispers something in his ear, and Jaekyung is "weirded out" from that moment. Also, I read that Jumin said that Jaekyung has experienced a difficult past. So finally the doors to Jaekyung's past may be open?
