A children's mystery drama about four kid detectives solving various cases happening at school.
Kim Ji-min
Kang Ha Ra
Tang Joon-sang
Lee Seo Jin
Yoon Chan-young
Lee Woo Jin
Yoo Jun
Choi Dong Yeong
Sieun
Jin Sun Mi
Heo Jung-min
Choi Gi Chan
Kim Myung-soo
Kang Suk
Uhm Hyun-kyung
Song Soo Ji
Choi Shang
Teacher Ma
Feb 17, 1967
May 7, 1997
Jan 8, 1989
Jan 1, 2004
Mar 20, 2023
May 30, 2022
Nov 10, 1994
Jan 1, 2001
Jan 14, 2013
Oct 10, 1958
Mar 8, 2026
Sep 21, 1957
Jan 30, 1977
Apr 24, 1984
Apr 16, 2025
Apr 24, 2020
EBS 1
한국어/조선말
