On the new SBS Saturday Sunday drama "Angel Eyes," which aired on April 12, 2014, Ku Hye Sun thought of her first love from twelve years ago when she saw Lee Sang Yoon.

On the third episode of the new SBS Saturday Sunday drama "Angel Eyes," which aired on April 12, 2014, Yoon Soo Wan, played by Ku Hye Sun, thought of her first love from twelve years ago when she met Park Dong Joo, played by Lee Sang Yoon. On this day's episode, Park Dong Joo found out that Yoon Soo Wan, whom he met in twelve years, is going out with his coworker Kang Ji Woon, and felt jealous of him. Park Dong Joo later on helped Yoon Soo Wan out when she was caught as a victim to a patient. When Park Dong Joo rescued Yoon Soo Wan, she thought of her first love from twelve years, suggesting that she might realize that Park Dong Joo is the same person. In related news, the new SBS Saturday Sunday drama "Angel Eyes" is a story of Ku Hye Sun, her first love Lee Snag Yoon, and their sad past of having to let their loved ones pass away.