Young-jun, president of Young-Eum Music, fights the conspiracy of Sungchoon, president of rival company, Victory Records. But he ultimately dies while fighting. Sungchoon and his people cover up Young-jun's death as an accident. Young-jun's wife, Myungja, gives birth to their son, Sung-jae but due to Young-jun's sudden death, she falls into grief. Sungchoon has also been raising his children, Min-chul and Min-ji, alone after his wife's death. He proposes to Myungja and she accepts. In the meantime, at an orphanage, Yeon-soo and Sae-na, two orphans as close as sisters, are preparing for a birthday party for just the two of them. Coincidentally, the president of Victory Records, Sungchoon and his son, Sung-jae, happen to visit the orphanage. Time passes and … Yeon-soo works hard at making a living by teaching art and working at a restaurant. On the Christmas when Yeon-soo and Sae-na promised to meet, Yeon-soo is involved in an unexpected car accident and is unable to keep her promise. From then, they walk separate paths without learning of each other's whereabouts.
