Ongoing
Ji-hun, a former member of a secret special forces unit under the Special Operations Planning Office of the South Korean Army Headquarters, returns from a long overseas deployment — only to receive the news that his younger sister Ji-yun has died, and that the person accused of killing her is none other than her boyfriend, Seo Min-jun.
While still struggling to accept the fact that his sister is gone, Ji-hun, who trusted Min-jun, learns that Min-jun was falsely accused and had gone to Yeokseon Prison in search of Ji-yun’s real killer.
But eventually, Min-jun also meets his death inside the prison.
Determined to uncover the truth behind the unjust deaths of both Ji-yun and Min-jun, Ji-hun becomes a prison guard and heads to Yeokseon Prison to uncover the secrets hidden within.
Prison Guard Zero Manhwa, also known as Je 0 Gyodogwan / 제0 교도관. This Ongoing Manhwa was released in 2025. This series was written & illustrated by Oh Seong-rak. Prison Guard Zero is about Action, Adventure, Fantasy, Magical, Vampire story.
