Nam Gi-jun, a former criminal gang enforcer, leaves his brother and criminal past behind after an incident. Eleven years later, his younger brother, Nam Gi-seok, is brutally murdered, forcing Gi-jun back into the world of crime to uncover the truth and seek brutal revenge on those responsible.
A former top enforcer of the Joowoon organisation, he severed his Achilles tendon and left to make peace with the opposing Yakuza, but returned after 11 years due to his younger brother Gi-seok's death.
The series is based on the webtoonPlaza Wars: Mercy for None by Oh Se-hyung and Kim Geun-tae.[3] It is directed by Choi Sung-eun, written by Yoo Ki-seong, and produced byYong film andStudio N.[4]
^Lee, Ji-hyun (October 27, 2023).'광장' 소지섭, 11년 만에 돌아온다...차승원→이준혁 美친 라인업 완성 [공식] ['Mercy for None' So Ji-sub returns after 11 years...Cha Seung-won→Lee Jun-hyuk complete crazy lineup [Official]].Sports Chosun (in Korean). RetrievedJune 6, 2025.
^Ahn, Yoon-ji (February 7, 2025).[단독]소지섭, 웹툰 원작 드라마 '광장' 주인공 물망 [[Exclusive] So Ji-sub, a candidate for the lead role in the webtoon-based drama 'Mercy for None'].Star News (in Korean). RetrievedMay 6, 2025.
^Lee, Ho-young (August 24, 2023).[단독] '광장' 허준호, 강동원 이어 소지섭과 연기 시너지 발산 [[Exclusive] 'Mercy for None' Heo Jun-ho, Shows Acting Synergy With So Ji-sub Following Kang Dong-won].iMBC (in Korean). RetrievedMay 6, 2025.
^Lee, Ho-young (August 24, 2023).[단독] '연기장인' 이범수, '광장'에 뜬다 [[Exclusive] 'Acting Master' Lee Beom-soo, Appears in 'Mercy for None'].iMBC (in Korean). RetrievedMay 6, 2025.
^Lee, Ho-young (August 25, 2023).[단독] 안세호X안길강, '광장'서 소지섭→이준혁 만난다 [[Exclusive] Ahn Se-ho X Ahn Gil-kang, So Ji-sub → Lee Jun-hyuk meet in 'Mercy for None'].iMBC (in Korean). RetrievedMay 6, 2025.
