Study Group Study Group (Season 1, Episode 1)
TV Episode | Action, Comedy, Crime

Study Group

Study Group (Season 1, Episode 1)

TV Episode | Action, Comedy, Crime

Low ranking Ga-min starts a study group at Yusung Technical High School. Top student Kim Se-Hyun resists joining. When bullies that dominate the school beat up Se-Hyun, Ga-min uses his hidden fighting skills to stop them.

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Cast	+ Add Cast
33 cast members

Name	Known for
Hwang Min-hyun Yoon Ga-min Yoon Ga-min See fewer	Alchemy of Souls (2022)
Han Ji-Eun Lee Han-gyeong Lee Han-gyeong See fewer	Train to Busan (2016)
Cha Woo-min Pi Han-wool Pi Han-wool See fewer	Night Has Come (2023)
Lee Jong-hyun Kim Se-hyeon Kim Se-hyeon See fewer	Study Group (2025)
Shin Soo-hyun Le Ji-woo Le Ji-woo See fewer	Woman of 9.9 Billion (2019)
Yoon Sang-jeong Choi Hee-won Choi Hee-won See fewer	A Time Called You (2023)
Gong Do-yu Lee Joon Lee Joon See fewer	Study Group (2025)
Kim Dong-gyun Hwang Do-Gyun [Detective] Hwang Do-Gyun [Detective] See fewer	Gu Family Book (2013)
Lee Dong-hoon Seo Yoo-bi Seo Yoo-bi See fewer	Study Group (2025)
Seo Dong-kyu Yu-seong Tech student Yu-seong Tech student See fewer	Revenge (VII) (2024)
Jang Eui-don Superintendent Superintendent See fewer	#Alive (2020)
Jung Jae-sung vice-principal (Yu-seong Tech) vice-principal (Yu-seong Tech) See fewer	Big Mouth (2022)
Kim Jeong-yeong Oh Jung-Hwa (Yu-seong Tech employee) Oh Jung-Hwa (Yu-seong Tech employee) See fewer	Spring, Summer, Fall, Winter... and Spring (2003)
Woo-Jin Jin Kim Gyu-Jin [Disciplinary Committee member] Kim Gyu-Jin [Disciplinary Committee member] See fewer	Study Group (2025)
Lee Jong-hyuk Pi Yeon-Baek (Han Ul's father / Yeon-baek Group) Pi Yeon-Baek (Han Ul's father / Yeon-baek Group) See fewer	The Slave Hunters (2010)
Lee Jong-Wook Park Jung-Nam (Yu-seong Tech) Park Jung-Nam (Yu-seong Tech) See fewer	Study Group (2025)
Han Jung-Hoon Park Min Chul [3rd student] Park Min Chul [3rd student] See fewer	Study Group (2025)
Hwi Gyu Kim No. 173 (Yu-seong Tech) No. 173 (Yu-seong Tech) See fewer	Study Group (2025)
Lee Kwang-hee Jeong Do-hoon Jeong Do-hoon See fewer	Study Group (2025)
Ri Min dean of students (Yu-seong Tech) dean of students (Yu-seong Tech) See fewer	Castaway on the Moon (2009)
Hong Min-gi Park Geon-yeop Park Geon-yeop See fewer	Night Has Come (2023)
Seo Min-je Kang Tae-oh Kang Tae-oh See fewer	Study Group (2025)
Baek Seo-hoo Ma Min-hwan Ma Min-hwan See fewer	Study Group (2025)
Choi Seung-hoon Yoon Ga-Min Yoon Ga-Min See fewer	Grid (2022)
Jo Seung-yeon dean of academic affairs (Yu-seong Tech) dean of academic affairs (Yu-seong Tech) See fewer	The Moon (2023)
Shin Seo Woo Kim Se-Hyun's (child) Kim Se-Hyun's (child) See fewer	Study Group (2025)
Shim Woo-sung Na Tae-Man [Detective] Na Tae-Man [Detective] See fewer	Squid Game (2021)
Joo Yeon-woo Kim Soon-cheol Kim Soon-cheol See fewer	Uprising (2024)
Park Yoon-ho Lee Hyeon-woo Lee Hyeon-woo See fewer	Study Group (2025)
Kim Young-ah Jeon Mi Hyun Jeon Mi Hyun See fewer	The Recruit (2022)
Heo Young-Jin Yu-seong Tech student Yu-seong Tech student See fewer	Study Group (2025)
Lee Young-Joon Yu-seong Tech student Yu-seong Tech student See fewer	Study Group (2025)
Kim Young-woong Kim Se-Hyun's dad Kim Se-Hyun's dad See fewer	The Thieves (2012)