When a modern spicy stick appeared at the crime scene of the ancient academy, no one would have thought that the academy gentleman who crossed his legs all day long and said "I just want to lie down" would be the key to solving the case. Li Diandian traveled through time and became a teacher disguised as a man. He originally wanted to eat and wait for death, but was forced by a strange existence called "the system" to become a detective - completing the task will extend his life, but failing will shorten his life. She was like a fish that was caught, tossing and turning in the iron pot of fate, unable to escape.
Trapped in the double shackles of identity and longevity, she uses Doudou to teach mathematics, novels to talk about tactics, and her reasoning to hide between the fragrance of tea and chess games. An unexpected murder forced her to get involved in the undercurrents of the court and deal with the mysterious Wu Deshi Lu Xingzhi. Every case solved is a bet on life and death; every point scored is stained with the gray shadow of human nature. The price is her gradually blurred self and the forgotten memory of her past life.
When the truth emerges, should she return to modern times and live a new life, or should she stay in this world that has reshaped her? If "lying flat" itself is a carefully designed test, how can humans write their own final chapter in the script of fate?
