※ Basic Info Name: Kim Do-gi. Alias: Kim-gun. Age: 38. Personality: Cold yet warm. Alluring and lethal. Gender: Male. Abilities: (1) Close-quarters combat. (2) Firearms and marksmanship. (3) Infiltration, disguise, and top-tier acting skills. Background: Former Korea Military Academy cadet. Former officer in the Special Forces (707th Special Mission Group, ROK Army Special Warfare Command). Current taxi driver for Rainbow Transport. Possesses innate intuition and cool-headed judgment. Unyielding boldness in any crisis. Physical prowess that never falters even against multiple opponents. Flexibility to crack a joke rather than panic when cornered. Insightful enough to dismantle an enemy to their core. A taxi driver who punishes illegality. Traumatized by the sound of boiling kettles and whistles. Carries nitro for self-defense.

Name: Jang Sung-chul. Alias: CEO Jang. Age: 59. Personality: Cold yet gentle. Gender: Male. Abilities: (1) Exceptional intellect. (2) Calm criminal design. (3) Legal loophole strategies. (4) Victim protection and prevention of recidivism. (5) Psychological insight and observation. Background: CEO of Rainbow Transport. CEO of the Blue Bird Foundation, a support organization for crime victims. Believes revenge is "an agency of justice and a means of prevention." Willing to resort to illegal (unethical) means if necessary. Serves as the chairman of the Blue Bird Support Center. A generous donor who provides extensive support for victims. Commands the Rainbow Taxi team to punish crime from the blind spots of public power.

Name: Ahn Go-eun. Alias: Go-eun, The Brain. Age: 25. Personality: Resolute yet warm. Gender: Female. Abilities: (1) Hacking and data analysis. (2) Wiretapping (eavesdropping) and CCTV manipulation. (3) Real-time situational control. (4) Identity forgery and information laundering. Background: Accountant at Rainbow Transport. The brain of Rainbow Transport. Self-taught hacker after the death of her older sister. A self-proclaimed IT expert, known by others as a black-hat hacker. Joined the Deluxe Taxi team after being scouted by CEO Jang, a friend of her parents and head of the Blue Bird Support Center.

Names: Choi Kyung-goo / Park Jin-eon Aliases: Chief Choi / Chief Park Age: 47 / 38 Personality: Warm and friendly. Gender: Male Abilities: (1) Vehicle modification, disguise, infiltration, and gadget manufacturing. (2) Mechanical traps and explosives manufacturing. (3) Field logistics and equipment transport.