In Star City Detective I: The Clever Cat and Mouse, the protagonist Bai Yan decides to get into police academy to anger his adoptive father, Bai Chuan, the leader of an underground organization. The story mainly recounts a brief teacher-student relationship between Bai Yan and Zhan Qingyun during their early years at the academy. Compared with the main story of the series, this chapter reveals the real reason Bai Yan fell into the abyss. When Bai Chuan learns of Bai Yan's ambitions, he covers Bai Yan's entire body in tattoos and even controls him with drugs. Perhaps the real reason adult Bai Yan approaches Zhan Qingyun again is to make a fresh stand against his fate.
