Seohyun is smart, friendly and y; everyone loves her. Kyuhyun is quiet, nerdy, and average looking; he’s pretty much a loner. It’s not expected by anyone that these two would even talk to each other, not to mention, be friends. But they have been best friends since they were in elementary.

Now they are starting their first year in high school and Seohyun seems to be taking their relationship for granted. Kyuhyun realizes he needs to tell her about the secret feelings that he’s been hiding from her before it’s too late and he loses her completely.

Seohyun has only ever thought of Kyuhyun as her little brother. She would do anything to keep his innocent smile bright and happy. Because of family issues however, she is forced to study overseas for a few years and leave behind her oldest and dearest friend.

When she comes back 4 years later, she will find that all traces of the Kyuhyun she knew are gone.