Trailer
Cast
백종학
Nami's Husband
김예원
Girls' Generation Leader
소희정
Homeroom Teacher
차태현
Insurance Company Main Model
Han Seung-hyeon
Jung-mi's Older Brother
김영옥
Na-mi's Grandmother
김원해
Teacher
Bae Soo-kyung
Gang High School Girl
양희경
Jang-mi's Mother
이상아
Woman in Past Picture
강래연
Jong-ki's Girlfriend
이경영
Joon-ho
고수희
Jang-mi
홍진희
Jin-hee
천우희
Sang-mi
하승리
Ye-bin
주진모
Sung-chan
진희경
Choon-hwa
김선경
Bok-hee
정원중
Na-mi's Father
류혜린
Girls' Generation Member
Kwon Eun-soo
School Broadcasting Club DJ
성지루
Choon-hwa's Lawyer
엄혜수
Sang-mi's Group
강소라
Young Choon-hwa
이연경
Geum-ok
박영서
Young Jong-ki
김혜옥
Na-mi's Mother
김새벽
Class Monitor
이준혁
President of Private Detective Office
Choi E-sun
Joon-ho's Friend
Yang Joo-ho
Insurance Company Branch Manager
유호정
Na-mi
남보라
Young Geum-ok
정석용
Jong-ki
Jun Yoon-ji
Student Presenter at Festival
김민영
Young Jang-mi
박진주
Young Jin-hee
김보미
Young Bok-hee
민효린
Young Su-ji
안수호
Judge
심은경
Young Na-mi
박순천
Woman in Past Picture
고준
Private Detective
김시후
Young Joon-ho / Joon-ho's Son