When the lonely mathematical genius Lu Yunxuan was falsely accused of being a murderer, he decided to use the formula in his hand to recalculate the sins of the entire city.
He has a "mathematical eye" that can see through the laws of all things, and can turn people's hearts, crimes and even the operation of cities into solvable equations. From locked room mysteries to urban phantoms, he has transformed from a suspect into the police's ace consultant.
However, with each puzzle he solves, he gets closer to the truth about his parents' death. The shocking explosion in the laboratory was not an accident, but the entrance to a shadow empire called "Ouroboros". This empire controls cutting-edge technology from memory, emotion to time and reality, and attempts to lead human civilization to a cold "perfect" future.
When the end of reason is madness, Lu Yunxuan discovers that he must fight to protect an imperfect but free world. Because the most complex variable is always the human heart; and the final victory is to find the original intention called "human nature" outside of the formula.
