Hae-sin (2004) (tv show): Jang Bo Go (Choi Soo Jong) was a slave from Shilla (a Korean dynasty that lasted from 57 B.C. until 935 A.D.) He was sold in China during the Tang Dynasty, where he was trained as a gladiator-slave. Through hard work and persevera... Discover the latest Discussions, Reviews, Quotes, Theories, Explanations and Analysis of Hae-sin (2004) below