Saita, who was born in Kuyazhai, was brought home by police officer Zhou Haiyang during a police operation, and met Zhou Yu and Kang An'an. The three grew up together, took the police academy exams together, and finally worked as undercover agents together. When Saita grew up, he met the drug dealer again, and now he is no longer the kid who was exploited by others. Due to the influence of their parents, the three became anonymous and their personalities changed drastically. Under the leadership of undercover Nighthawk, the three grew up to be excellent undercover agents and captured the drug lords of the Golden Triangle.
