Study Group () is a South Korean television series co-written by Eom Seon-ho and Oh Bo-hyun, directed by Lee Jang-hoon and Yoo Beom-sang, and starring Hwang Min-hyun, Han Ji-eun, Cha Woo-min, Lee Jong-hyun, Shin Su-hyun, Yoon Sang-jeong, and Gong Do-yu. Based on the webtoon of the same name by Shin Hyung-wook, it is about a boy who wants to study hard to achieve his one goal. It premiered on TVING on January 23, 2025.
In August 2025, it was renewed for a second season. In January 2026 Hwang Min-hyun was confirmed to return.
Synopsis
Study Group tells the story of Yoon Ga-min, who is only talented in fighting, trying to study hard to achieve his goal of entering university by forming a study group in the notorious Yusung Technical High School.
Cast and characters
Main
A first year student at Yusung Technical High School who is excellent at fighting, and has a passion for studying but frequently returns with bad grades. He forms a study group in the school with the target of entering university.
A temporary teacher at Yusung Technical High School, and is the sturdy backing of the study group.
A model second year student at Yusung Technical High School.
Ga-min's classmate who forms a study group together with him.
A first year student at Yusung Technical High School, and is Hyun-woo's twin elder sister. She is part of the study group.
Ji-woo's best friend who joins the study group.
- Gong Do-yu as Lee Jun
- Song Seung-hwan as teen Jun
- Kang Ji-yong as young Jun
A self-proclaimed in the study group. He joins the study group as he sees that Ga-min is good at fighting.
Supporting
- Hong Min-gi as Park Geon-yeop
- Oh Han-kyul as young Geon-yeop
A first year student at Yusung Technical High School, who struggles to find the murderer of his mother.
A second year student at Yusung Technical High School, and the closest associate of Han-wool. He is part of the Yeonbaek Gang Quartet.
A first year student at Yusung Technical High School, Ga-min's classmate and Ji-woo's twin younger brother.
- Lee Kwang-hee as Jung Do-hoon
A first year student at Yusung Technical High School, and Geon-yeop's associate.
- Joo Yeon-woo as Kim Sun-chul
A third year student at Yusung Technical High School, and the leader of the Yeonseo Three Chuls, who serve as the top bodyguards of Han-wool. He has a desire for studying, but went on the wrong path due to circumstances.
- Kwon Hyung-seok as Lee Dae-chul
A third year student at Yusung Technical High School, and one of the Yeonseo Three Chuls.
- Han Jung-hun as Park Min-chul
A third year student at Yusung Technical High School, and one of the Yeonseo Three Chuls.
- Lim Ji-sub as Anti
- Park Jun-hyuk as teen Anti
- Cho Yi-an as young Anti
Former friend of Jun, and currently a part of the Yeonbaek Gang.
- Shim Woo-sung as Na Tae-man
A detective from the Mooncheon Police Station.
- Mo Geon-hu as Guk Gwan-woo
A first year student at Heukchang High School, who is part of the Yeonbaek Gang's main force.
- Seo Dong-gyu as a first year student at Yusung Technical High School
One of the students spreading false rumors about Ga-min.
Special appearances
- Kim Young-ah as Jeon Mi-hyeon
Ga-min's mother and the director of the Taekwondo Association.
- Kim Young-woong as Se-hyun's father
- Lee Jong-hyuk as Pi Yeon-baek
Han-wool's father who is the boss of the Yeonbaek Gang.
- Jung Jae-sung as the vice principal of Yusung Technical High School
- Kim Min as Oh Jang-ho
The scout in-charge for Yeonbaek Gang.
Former teacher of Yusung Technical High School, and Geon-yeop's mother.
A second year student at Yusung Technical High School, and a part of the Yeonbaek Gang Quartet.
A second year student at Yusung Technical High School, and a part of the Yeonbaek Gang Quartet.
Production
Development
Study Group is co-directed by Lee Jang-hoon and Yoo Beom-sang, and written by Eom Seon-ho and Oh Bo-hyun. It is planned by Studio Dragon and produced by Ylab Plex. The series is based on the popular Webtoon of the same name written by Shin Hyung-wook.
On May 12, 2025, a representative from Studio Dragon confirmed to media outlets that the second season was already in the early stages of planning.
Casting
On August 10, 2023 Hwang Min-hyun was reportedly cast as stated by his agency, Pledis Entertainment. On September 20, TVING revealed the main cast which included Hwang Min-hyun, Han Ji-eun, Cha Woo-min, Lee Jong-hyun, Shin Su-hyun, Yoon Sang-jeong and Gong Do-yu.
Original soundtrack
Part 1
Part 2
Part 3
Part 4
Release
Study Group was confirmed to premiere on TVING on January 23, 2025, with two episodes released every Thursday for five weeks.
Accolades
Awards and nominations
References
External links