Previously known as an outstanding Jinzhou Patroller, Yinlin is steady and reliable, yet harbors hidden depths of secrets. But after being suspended from her duties at the Public Security Bureau, she must now pursue hidden evils in secrecy. She excels at exploiting resources at her disposal to uncover lurking crimes. Beneath her aloof and flamboyant exterior, Yinlin possesses a heart of gold, reserved only for those she deems trustworthy.