Skip to content

123MVIESWatch Your Favorite Movies Online

Movies TV-Series Top Rated

Search movies or series

Browse

Movies
TV-Series
Top Rated
Genres

Genres

Action
Adventure
Animation
Comedy
Crime
Documentary

About

About
FAQ
Privacy
Terms

123MVIESWatch Your Favorite Movies Online

Browse and discover movies and TV series — ratings, cast, trailers, and where to watch them legally on the services you already have.

This product uses the TMDB API but is not endorsed or certified by TMDB. Streaming availability data provided by JustWatch via TMDB.

© 2026 123 Movies. A discovery guide — we do not host or stream any video content.

Study Group poster

Study Group

Original title: 스터디그룹

We fight again today, solely to study.

8.6150 votes20252 seasons11 episodesReturning Series

Action & Adventure
Comedy
Drama

A struggling student at Korea's worst high school forms a study group while protecting his classmates with his fighting skills, hoping to overcome academic challenges and secure a spot in college.

Created by: Lee Jang-hoon
First aired: 23 January 2025
Network: TVING

Trailer

Top Cast

Minhyun
Yoon Ga-min
Lee Jong-hyun
Kim Se-hyeon
Gong Do-yu
Lee Jun
Shin Su-hyun
Lee Ji-woo
Cha Woo-min
Phi Han-wool
Park Yoon-ho

Lee Hyun-woo

Hong Min-gi

Park Geon-yeop

Han Ji-eun

Lee Han-kyung

Yun Sang-jeong

Choi Hee-won

Baek Seo-hoo

Ma Min-hwan

Lee Gwang-hee

Jeong Do-hoon

Kim Young-ah

Jeon Mi Hyun

Jeong Jae-seong

vice-principal (Yu-seong Tech)

Joo Yeon-woo

Kim Soon-cheol

Cho Seung-yeon

dean of academic affairs (Yu-seong Tech)

Jin Woo-jin

Kim Gyu-Jin [Disciplinary Committee member]

Choi Ye-chan

—

Kim Min-ah

Hwang Mi-Hee (Yu-seong Tech)

Lee Dong-Hoon

Seo Yoo-bi

Kim Hwi-gyu

No. 173

More Like This

Teach You a Lesson

ONE: High School Heroes

Weak Hero

All of Us Are Dead

Gen V

Die Hart

The Greatest American Hero

Moving

Absolute Value of Romance

Black Lightning

Agent Kim Reactivated

Kung Fu

A Killer Paradox

Supacell

Mercy for None

Taxi Driver

Where to Watch

Region

Stream with a subscription

Rakuten Viki

Watch free

Rakuten Viki

Open on JustWatch↗

Availability data for United States provided by JustWatch via TMDB. Listings can change without notice — check the provider before subscribing.

Seasons

Season 110 episodes · 2025
Season 21 episode

Study Group (2025) | 123 Movies