Gil Da-ran (Lee Min-jung) is a struggling substitute teacher trying to get her certificate. She is engaged to a kind and handsome doctor, Seo Yoon-jae (Gong Yoo); it is a fairy-tale-come-true until one month before the wedding, Yoon-jae inexplicably becomes distant.

• Ji Byung-Hyun
• Kim Sung-Yoon
• Gong Yoo
• Lee Min-Jung
• Bae
• Suzy
• Jang Hee-Jin
• Big