Mercy for None

Mercy for None is a South Korean drama series released on Netflix in 2025. The series is an adaptation of the webcomic Gwangjang, which was written by Oh Se-hyeong and illustrated by Kim Kyun-tae, and serialized on Naver between 2020 and 2021.

Plot

The story follows Nam Gi-jun (played by So Ji-sub), a former member of the Bongsan Gang. Years prior, Gi-jun was a formidable figure in the criminal underworld, helping the gang grow into a powerful organization. Seeking a different life, he eventually left the gang, an act that required him to sever his own Achilles tendon as a symbolic and physical departure. His younger brother, Nam Gi-seok (played by Lee Jun-hyuk), followed a different path, rising to a high-ranking position within the rival Joowoon Gang.

Eleven years after his departure, Gi-jun lives a quiet life supplying drinks to businesses associated with his former gang. His peaceful existence is shattered when his brother, Nam Gi-seok, dies under mysterious circumstances. Driven by a need for justice and answers, Gi-jun returns to the dangerous world he once abandoned to uncover the truth behind his brother's death and exact revenge on those responsible.

Production

The series is directed by Choi Sung-eun, with a screenplay by Yoo Ki-sung. It consists of seven episodes and was produced for the streaming platform Netflix.

Cast

The series features an ensemble cast including:

• So Ji-sub as Nam Gi-jun
• Heo Jun-ho as Lee Ju-woon
• Lee Jun-hyuk as Nam Gi-seok
• Jo Han-chul as Choi Seong-cheol
• Ahn Kil-kang as Gu Bong-san