Kadro (9)
Ahn Ji-hoHoon
Ahn Nae-sangMu-jin
Yun Yoo-sunSo-yeon
Uhm Ji-sungByeong-tae
No Tae-yeobGi-cheol
Shin Se-hwiYeon-hee
Kim Joong-kiTeacher
Gu Bon-jinMath
Park Eun-youngByeong-tae's motherAhn Ji-hoHoonAhn Nae-sangMu-jinYun Yoo-sunSo-yeonUhm Ji-sungByeong-taeNo Tae-yeobGi-cheolShin Se-hwiYeon-heeKim Joong-kiTeacherGu Bon-jinMathPark Eun-youngByeong-tae's mother