Baek Yi-soo and Baek Do-kyung are identical twin brothers whose adult lives diverged into opposing worlds of violence. Yi-soo endured relentless conditioning within the Headquarters of Intelligence Detachment (HID), becoming an elite black-ops operative skilled in lethal close-quarters combat, psychological warfare, and tactical reconnaissance. Meanwhile, Do-kyung established absolute dominance over Seoul's criminal underworld as the fearsome head of the Taesan Syndicate. Their fragile coexistence collapses during a catastrophic blackout operation: corrupt state brass betray Yi-soo's special forces team, ordering their wholesale elimination. As Yi-soo fights through state-sponsored assassins to seek sanctuary with his brother, rival syndicates ambush the Taesan faction, leaving Do-kyung mortally wounded.

With his unit exterminated and his twin dead, Yi-soo casts off his government dog tags and adopts Do-kyung's name, public identity, and criminal empire. Stepping into the shoes of Taesan's boss, Yi-soo must deceive hardened lieutenants, outmaneuver suspicious rival chairmen from Seoul's five dominant criminal organizations, and identify the treacherous political figures who orchestrated the purge. Armed with lethal military tradecraft and relentless resolve, Yi-soo launches a campaign of strategic retaliation where every board meeting and alley brawl carries fatal consequences.

What to Expect

Baek XX combines grounded military close-quarters combat with cutthroat mafia factional politics. Battles prioritize pragmatic lethality, tactical weapon disarmament, joint manipulation, and spatial awareness over stylized martial arts. Pacing moves rapidly through tense syndicate negotiations, internal gang purges, and territorial warfare across Seoul. Narrative stakes remain grounded in mortal danger, deception, and psychological tension as the protagonist balances managing his brother's criminal enterprises with tracking state-level conspirators.

Who Will Enjoy This

This manhwa is built for readers seeking mature, hard-boiled crime thrillers and revenge narratives featuring a calculated, hyper-competent protagonist. Fans of grounded tactical action series like Castle, Lookism, and Mercenary Enrollment will appreciate the lethal military methodology, gritty urban world-building, and intricate criminal faction warfare.