Bailiqing: When he was young, he studied medicine with Fan Siyuan, the master of Xinglin. When he was fifteen, he was kidnapped and disappeared for a month. Later, he studied both ancient literature and psychology.
Luo Chenmian: mixed race, from a prominent family, a follower of Fan Siyuan, but for some reason he later changed his career to become a forensic doctor.
Purpose: Under justice, justice is immortal