Get ready for the much-anticipated return of actor So Ji Sub in the upcoming noir action series 'Mercy for None,' exclusively on Netflix in 2025. Adapted from the popular webtoon 'Square,' this gritty drama promises a thrilling and unforgettable experience, featuring a gripping storyline and an outstanding cast.

'Mercy for None' revolves around Nam Gi Jun (played by So Ji Sub), a former enforcer for the Bong San Gang under the leadership of the formidable Gu Bong San (Ahn Gil Kang). Known for his brutal efficiency in gang conflicts, Gi Jun played a crucial role in the gang's rise to power. However, compelled by the need to protect his brother, Nam Gi Seok (Lee Jun Hyuk), who joined the rival Joo Woon Gang led by Lee Joo Woon (Huh Joon Ho), Gi Jun decides to leave the criminal world by sacrificing his own left Achilles tendon as a symbolic farewell.

After eleven years of leading a peaceful life, supplying drinks to Bong San-affiliated businesses, Gi Jun's world is shattered when his brother, Gi Seok, is murdered. Driven by grief and a thirst for justice, Gi Jun re-enters the dangerous realm he walked away from. Determined to uncover the truth behind his brother's death and seek revenge, Gi Jun navigates a treacherous landscape of betrayal, power struggles, and moral dilemmas.

So Ji Sub delivers a powerful portrayal of Nam Gi Jun, capturing the character's raw emotions and inner conflicts with remarkable intensity. The series unfolds in a Seoul torn by the fierce rivalry between the Bongsan and Joowoon factions. The stellar cast includes Lee Beom Soo as a ruthless fixer, Gong Myung as Bong San's ambitious successor, and Choo Young Woo as the son of Joo Woon's leader—a dual role as a prosecutor. Jo Han Chul shines as Joo Woon's loyal right-hand man, while Cha Seung Won and Lee Jun Hyuk lend further complexity to the narrative.

'Mercy for None' promises a dark, intense, and brutal narrative that will redefine the noir genre. Fans of the original webtoon can anticipate a faithful yet refreshing adaptation that captures the gripping tension and moral intricacies of the source material. Stay tuned for updates on the release date—this is a series you wouldn't want to miss, exclusively on Netflix.