Inspired by Davichi's Don't Say Goodbye & my classmates Renz Dave Morano & Christopher Labalan (they perfectly remind me of Siwon). Yuri falls in love with Siwon after their high school. Siwon was already brokenhearted after Yoona kissed another guy.

When Yuri & Siwon became in relationship,  Yoona tries to snatch him back. Will Yuri heal Siwon's heartache or will she makes his heartache worse ?