Yongsoon

Yong-soon is an 18-year-old high school student. She falls in love with her gym teacher, but she thinks her teacher might have a girlfriend. Yong-Soon and her friends try to find out whether he does have a girlfriend, but they can't find any clues. Making things worse, her father brings a new stepmother from Mongolia.

• 
  Lee Soo-kyung

  Yong-soon
• 
  Choi Deok-moon

  Father
• 
  Park Keun-rok

  PE Teacher
• 
  Kim Dong-young

  Bbak-gyu
• 
  Choi Chan-sook

  Che-yook's Mother
• 
  Kim Ja-young

  Moon-hee's Mother
• 
  Park Chul-min

  Chief of School Administration
• 
  Kim Min-jae

  Music Teacher
• 
  Choi Yeo-jin

  English Teacher
• 
  Kim Eung-soo

  Principal