Haechi

The Lowly Prince (1x1)

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A civil service examination is taking place at Hanyang, the capital of Joseon. Yi Geum, a forsaken prince is asked to substitute someone at the exam for a fine horse. Right when he was about to turn his exam in, a fellow named Park Mun Su catches him at the spot. The next thing you know, Prince Yeoning, Yi Geum is on the run.