After the Xuanmen War, Su Yun inherited his father's will and became the heir. Because there was a female corpse at home, he was personally arrested by the beautiful investigator Ren Yingying, and an interrogation that subverted cognition began. Since then, the Investigation Bureau has added a non-staff "case-solving consultant", and all kinds of strange and unsolved cases have come one after another. Su Yun, while working as a "case-solving consultant", is looking for clues to the Xuanmen War.
