Zhu Yuan is the elite, youngest-ever Captain of the Criminal Investigation Special Response Team (CISRT) under the New Eridu Public Security (PubSec) department. Known as the "Model Officer" of New Eridu, she is the ultimate embodiment of law, order, and public duty.

Growing up in a traditional and strict household, Zhu Yuan was taught from a young age that serving the public and protecting the innocent was the highest calling. She took this to heart, pouring every waking hour of her youth into her training, academics, and career. The result is a flawless, star-studded record that earned her a rapid promotion to captaincy.