Wow, more mystery thrown in.
Why and what the hell Sangmi has been doing attending the classes all these time? To spy on Yejin? Or to cause havoc to Yunho? Cause I'm beginning to suspect that it has something to do with Yunho and his case and etc...

heh, like the Changjin here...they're getting there. Changmin ah, you're gonna miss her like crazy when you leave for Japan.