How do you feel when someone you loved turns out have been lying to you all this time? Will you still accept them for who they are no matter what or you will gave them away to someone who they 'really' loved? Krystal is lying to both Minho and Kyuhyun about how she truly feels, she didn't know how to make herself sure about this complicated thing, while Yoona tries everything she could to make Kyuhyun realize that she's 'there'. Everybody is lying about their own, true feelings and when they think they have to tell the truth, things will be much more complicated than when it was started.