Lingering in the colorful neon lights,
Stop in the ancient scenery under the sun,
Walking in the endless traffic,
This city is prosperous and beautiful, beautiful and sinful.
This is a city of flesh and blood. Its prosperity makes people sink and makes them sin.
This is an enviable city, but it is also known as the "Sin City" and the "Suicide City".
UIA, undercover investigation agency. This special agency is not subject to local jurisdiction.
Captain: Nangong Qixuan, known as a "military genius", achieved second-class meritorious service, and later joined the world's anti-terrorism organization.
Consultant (external): Xiao Chenyu, DR. XIAO, mixed race, genius violinist, IQ 191, humanoid "encyclopedia".
Forensic doctor: Milo, a foreigner, was born into a medical family and is a world-famous pharmacologist and biochemist. Passionate about bad jokes.
Technician: Lin Sen, one of the most famous hackers in China. The rivers and lakes are called "Five Woods".
Team member: Zhang Shan, sniper, firearms expert.
Li Si, a veteran team member, has rich experience in handling cases.
Wang Wu has many years of undercover experience.
PR: GIGI, the blonde beauty, is responsible for the communication between UIV and various departments.
XO: People who walk between black and white have mysterious identities.