"Swallow the Sun" revolves around three young people in Jeju Island and how they develop Seogwipo, Jeju into a world city. Jeong-woo Kim (Ji Seong) is the illegitimate child of a gangster father and a haenyeo (a traditional freediver) mother. He was raised in an orphanage and soon developed a rebellious temperament. Su-hyeon Lee (Yu-ri Seong) has a strong will and is focused on achieving her goals. She overcame many unfortunate situations in her life to first study overseas and then become the organizer for a world famous performance team. Tae-hyeok (Lee Wan) was raised without ever knowing his father. After he entered adulthood, Tae-hyeok meets Min-ho Jeong, a wealthy businessman, who claims to be his father. This changes Tae-hyeok's life entirely as he now works to excel in business management. | 
