Overview

• Mercy for None premiered on Netflix on June 6, 2025, with all eight episodes available to stream.
• Based on the Naver webtoon Plaza Wars: Mercy For None, the series follows ex-gangster Nam Ki-jun as he returns to the underworld to avenge his brother’s death.
• So Ji-sub anchors the show with a performance praised for conveying quiet intensity and emotional depth.
• Reviewers have lauded the series’ intense hand-to-hand fight choreography for its raw, visceral style that sets it apart from gun-focused thrillers.
• Some critics have noted that the writing and character development could be stronger behind the action-heavy narrative.