Characters

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  Yun Siu (cast: Lee Hyunwoo)

  A team leader of the idol group 'Mobius'
  
  Having many talents, Yun Siu is a rapper and produces songs, as well. He was orphaned when he was a baby, and has hard time opening his mind to others. He inadvertently enters Moorim School, but later he ends up growing very attached to the school.
  A team leader of the idol group 'Mobius'
  
  Having many talents, Yun Siu is a rapper and produces songs, as well. He was orphaned when he was a baby, and has hard time opening his mind to others. He inadvertently enters Moorim School, but later he ends up growing very attached to the school.
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  Sim Sundeok (cast: Seo Yeaji)

  A diligent student of Moorim School
  
  Sim Sundeok goes to Moorim School without letting her father know the fact. She has the responsibility of taking care of her blind father. She works part-time and studies hard at the same time.
  A diligent student of Moorim School
  
  Sim Sundeok goes to Moorim School without letting her father know the fact. She has the responsibility of taking care of her blind father. She works part-time and studies hard at the same time.
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  Wang Chiang (cast: Lee Hongbin)

  A son of Chairman Wang of the Chinese major company
  
  Chiang is forced by his father to attend Moorim School. The only reason why he accepts this is that he wants to bring his poor mother back to China.
  A son of Chairman Wang of the Chinese major company
  
  Chiang is forced by his father to attend Moorim School. The only reason why he accepts this is that he wants to bring his poor mother back to China.
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  Hwang Seona (cast: Jung Eugene)

  A daughter of Hwang Musong
  
  Hwang Seona is the top student of Moorim School. And, everything changes as her idol, Siu, enters the school.
  A daughter of Hwang Musong
  
  Hwang Seona is the top student of Moorim School. And, everything changes as her idol, Siu, enters the school.