Everyday, the post-it notes will be sent to Eunbi and she didn't know who is this person. She slowly falling in love with the sender but at the same time, she's in love with her childhood friend, Kang Hyewon.

Sakura and Hyewon will be a partner to act as princes and princess in their upcoming cultural festival. What will happen to both of them as they never interact with each other before?

Sakura never thought Hyewon's real reason avoiding her for the past months because of this big secret. The reason is making Hyewon panic and ashamed of herself while Sakura is so shock.

Sakura wake up from her sleeps and found Hyewon is missing. Will Sakura manage to find Hyewon?     

Sakura wonder why Hyewon avoiding her these past few days. And she determine to make Hyewon talk to her. Just two of them.