Endless Rain

Young-ho doesn't have any dreams for his life. He has been studying for three years to enter a university. He decides to send a letter to his childhood friend So-yeon. But her younger sister So-hee receives the letter instead of her sick sister. So-hee writes back to Young-ho, pretending to be So-yeon. Meanwhile, So-hee takes care of her sick sister and also runs a secondhand bookstore with her mother.

• 
  Kang Ha-neul

  Young-ho
• 
  Chun Woo-hee

  So-hee
• 
  Kang So-ra

  Soo-jin
• 
  Lee Sul

  So-yeon
• 
  Lim Ju-hwan

  Young-hwan
• 
  Lee Hang-na

  Mother
• 
  Lee Yang-hee

  Father
• 
  Park Se-hyun

  Student
• 
  Lee Ye-hwan

  재수학원생들
• 
  Kim Sung-kyun

  Teacher