When her son gets critically injured in a car accident, a mother discovers that there's more to his relationship with his friend than she had thought.
Mee-kyung
Yong-jun
Soo-hyun
Hee-young
Jin-kyu
Ms. Park
Geum-sun
Sook-jung
Ji-yeon
Han-sung
Kyung-jun
Mr. Kim
Homeroom Teacher
Assistant Manager Lee
Doctor
