Trian had joined the federal army when he was young and had gone through the selection process of the Seal Assault Team, but was eliminated in the last round.
After fighting on the battlefield for several years, Trian was forced to leave the army due to mental health issues, and having quickly spent all his savings upon returning to the Federation, he switched careers through a referral to become an assassin who earned money by taking hit jobs.
Luo An Greenwood, from the FBI in Washington D.C., was a well-known leader of a specialized investigative unit, with excellent case-solving abilities, formidable combat skills, and an outstanding counter-surveillance awareness. For an assassin, he was a target of high difficulty.
