Qiao Haitang travels through a Western fantasy world to become a skeleton, binds with a system to reshape her flesh and learn magic, but only wants to retire and open a restaurant to promote Chinese cuisine. Unexpectedly, the system turns out to be a dark-side system of "Fight, fight, fight! Kill, kill, kill!", whose mission is to slaughter all living beings and seize their lifespan. The system orders her to kidnap and torture an old man, but she helplessly states that she is not the murderer Zhong Lingci, but an undercover cop, and the system is struck dumb on the spot.