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.
as Yong-soon
as Father
as PE Teacher
as Bbak-gyu
as Moon-hee
as Che-yook's Mother
as Moon-hee's Mother
as Chief of School Administration
as Music Teacher
as English Teacher
as Principal
as Athletic Club Senior
as Young Yong-soon
as Birth Mother's Old Love
as Birth Mother
as Art Teacher
as Middle-aged Woman
as Supermarket Worker
as Athletic Club Member
as New Gym Teacher
as Ethics Teacher
