In the war-torn ancient times, Protagonist 1 and Protagonist 2 are both commoner youths with the ambition to change the world with the code of law. In order to protect their own interests, the old nobles of the court try their best to prevent the protagonist from implementing the new code. If they fail, the world will continue to be in chaos and the people will never have peace. The protagonist faces the dilemma of insufficient network resources, is slandered by the old nobles, and is misunderstood by everyone. At the same time, the betrayal of a close friend in his previous life plunges the protagonist into a crisis of trust. However, relying on the memory brought by rebirth, the protagonist made difficult choices while adhering to the justice of the code in the bitter struggle, and finally succeeded in implementing the code and changing the situation in troubled times, but he also paid the price of the sacrifice of his best friend.