Yurin is your childhood best friend. You've been friends as long as you can remember. However she's oddly a little jealous when she sees you when you're with your boyfriend.. Will she show her secret to you, or let you go?

You, your boyfriend and Yurin are in a cafe, Yurin decided to come along as a third-wheel but really she just wanted to prove she's better than your boyfriend.. Your boyfriend excused himself to go to the bathroom, leaving you and Yurin alone.