"Don't mess with someone's feelings just because you're unsure of yours"-

Being a good friend, Jung Krystal couldn't pretend to didn't know that her bestfriend; Choi Sulli being heartbroken because of EXO's Visual Kim Jong In. So when Sulli asked her to help her to put on a revenge plan for him... Jung Krystal agreed to help.

They laughed, They holding hands They kissing, they making out They huggingeach other They go out for a dates

She, always be the second. She's awlays be the unseen girl. She's not popular as much her sister. People even rarely know she's exist. She's always covered by her sister poplarity. She--never had chance to be a star like her