Yoona is a talented singer that is very versatile when it comes to singing. She can reach the hight notes and even go as low as Alto ; the only problem is that Yoona has 'stage fright' sealing her marvelous talent from the public. Upon her mother's whim of sharing her talent, she became a cover artist in the internet under the alias of 'Yupi' , and has gained many subscribers even though no one knows her real identity.

Jonghyun is a talented writer and artist that is very creative when it comes in the field of writing and drawing; the only problem is that he is too afraid to publish his works, afraid of what others will think of it. Upon hearing the voice of Yupi once, he started publishing his hidden works that made him known throughout the internet under the name of 'Pocky'. 

To repay what Yupi did for him, he began his search for the unknown artist, but what will happen when he realizes that Yupi is his neighbor, and that they are under the same class in school ? 

The crazy search for each other have begun. 

Will these search blossom into a flower of love, or will they continue playing the game of Hide and Seek ?