In the early years of the Republic of China, the Beiyang government was in turmoil, and the city of Beiping was prosperous on the surface but was actually undercurrent. A female detective who was born into a shabby aristocratic family was born with a "weapon resonance" physique: any artifact that has been contaminated with the breath of human life for more than seven days, she can see the scene of the murder that occurred on the artifact at the moment of contact, like a holographic video. This ability is not a gift but a curse - every resonance will make her feel the pain of the deceased, and the more frequent the resonance, the weaker her body will be. When she took over a bizarre case of "a baby holding a murder weapon", she found that she was dragged into a huge conspiracy that spanned the three worlds of military, government and business - someone specially collected "murder weapons" and used them to create a set of power spells that could cause civil strife among the Beiyang warlords. And her hidden identity - the descendant of the last "murderous master of ceremonies" in the former Qing court - is the only key to unlocking this curse.
