Return of the Bloodthirsty Police (Bahasa Korea: 살인마 형사 귀환하다, RR: Salinma Hyeongsa Gwihwanhada) is a high-intensity Action-Crime and Reincarnation manhwa that has become a viral sensation in Indonesia. It is highly regarded for its brutal action, dark humor, and a protagonist who blurs the line between a hero and a monster.

The story follows Gyeong-su, the most notorious and cold-blooded professional assassin in the underworld. After being betrayed and killed by his own organization, he wakes up in the body of a young, rookie police officer. Now, the man who spent his entire life taking lives is forced to "protect" them. However, Gyeong-su has no intention of following the rules. Using his lethal assassin skills, he begins to hunt down criminals with a level of brutality that terrifies even the villains themselves—turning the police force into his personal tool for revenge.

Alternative Names and Titles

살인마 형사 귀환하다 / Return of the Bloodthirsty Police / The Killer Cop’s Return / Kembalinya Polisi Haus Darah