"Should we make a bet? The person who gets a confession from Seo Taehyun first wins." With good looks and outstanding grades, twins Siyeon and Sieon are the most popular kids in school. How did these perfect twins end up making a bet to win the heart of an ordinary high school boy, Taehyun? And what's Taehyun's secret for rejecting them both...?! A somewhat special and suspenseful romance!