Back in high school, there was always a peculiar and subtle tension between Yoosung and Gunha. After losing contact with Gunha, Yoosung moved on, becoming an actor and trying to put the past behind him. However, when a stalker begins threatening Yoosung, his agency brings in Gunha as his personal bodyguard to protect their star. Now, Yoosung is forced to confront Gunha, along with the lingering past and unresolved emotions that still hang between them...