Characters

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  JANG YOUNG-SIL / Cast. Song Il-Kook

  One of the greatest scientists of Joseon Dynasty.
  
  Thanks to King Sejong the Great’s excellent leadership, the Joseon Dynasty was able to become the world’s greatest country of Science and Technology. Born as a servant, he was a self-made man, but he was removed from the palace because he did not make the king’s palanquin properly. After that, there are no records of him.
  
  Jang Youngsil invented many superior clocks such as Clepsydra as well as several astronomical instruments.
  One of the greatest scientists of Joseon Dynasty.
  
  Thanks to King Sejong the Great’s excellent leadership, the Joseon Dynasty was able to become the world’s greatest country of Science and Technology. Born as a servant, he was a self-made man, but he was removed from the palace because he did not make the king’s palanquin properly. After that, there are no records of him.
  
  Jang Youngsil invented many superior clocks such as Clepsydra as well as several astronomical instruments.
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  SEJONG / Cast. Kim Sang-Kyung

  I Do(1397~1450)
  
  A wise and benevolent ruler of Joseon Dynasty. He selected talented people like Jang Youngsil, made astronomical observations, and strengthened many policies.
  
  Despite constant conflicts against his courtiers, Sejong improved Joseon as he pursued tolerance instead of slaughter.
  I Do(1397~1450)
  
  A wise and benevolent ruler of Joseon Dynasty. He selected talented people like Jang Youngsil, made astronomical observations, and strengthened many policies.
  
  Despite constant conflicts against his courtiers, Sejong improved Joseon as he pursued tolerance instead of slaughter.
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  TAEJONG / Cast. Kim Young-Chul

  Lee Bangwon(1367~1422)
  
  Although he created a strong central government and an absolute monarchy, without his work, the foundation of Joseon Dynasty would not have been established. His governance philosophy was different from his son, Sejong, yet he exerted every effort on making his son a great king.
  Lee Bangwon(1367~1422)
  
  Although he created a strong central government and an absolute monarchy, without his work, the foundation of Joseon Dynasty would not have been established. His governance philosophy was different from his son, Sejong, yet he exerted every effort on making his son a great king.
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  PRINCESS SO-HYEON / Cast. Park Sun-Young

  Daughter of Taejong, Sejong’s older sister
  
  Even though she lost her husband at an early age, she still made a living. Then she met Jang Youngsil who is her child day friend. She was kind enough to support Jang Youngsil, and later she happened to care for him. However, her affection landed him in difficulties.
  Daughter of Taejong, Sejong’s older sister
  
  Even though she lost her husband at an early age, she still made a living. Then she met Jang Youngsil who is her child day friend. She was kind enough to support Jang Youngsil, and later she happened to care for him. However, her affection landed him in difficulties.