
"Fulltime Killer" delves into the shadowy and perilous world of professional assassination through the eyes of O, a top-tier hitman who has lived a solitary life, detached from the outside world. His existence is marked by precision, danger, and isolation, as he navigates through a career that leaves little room for personal connections or vulnerabilities. O’s life is a relentless cycle of assignments and evasion, underlining the loneliness that defines him.
The story takes a transformative turn when Chin, an innocent and unsuspecting figure, enters O’s solitary world as his apartment cleaner. Chin’s presence begins to chip away at O's hardened exterior, introducing warmth and a glimmer of humanity into his bleak lifestyle. Their unlikely relationship serves as a poignant contrast to the coldness of O's profession and hints at the possibility of redemption and change amidst a backdrop of violence.
However, the delicate balance is disrupted with the arrival of Tok, a flamboyant and reckless assassin whose ambition threatens to upend O's status as the number one sharp-shooter in the lethal game they inhabit. Tok’s mission to expose O’s true identity and claim his title injects tension and rivalry into the narrative, transforming the story into a gripping thriller that explores themes of identity, competition, and survival within the clandestine world of killers.