Gu Linyuan, a student in the Republic of China, was bound to the reincarnation system and told that he was a traitor in his previous life and that he needed to save the anti-Japanese soldiers in this life to atone for his sins. He lurked in the enemy camp and dealt with life and death, but when the mission was completed, he discovered the system's conspiracy - the so-called redemption is actually the eternal torture of good intentions. He tore up the contract and said solemnly: "It has always been my true intention to protect my compatriots, so why do I need to atone?" Finally, he led everyone to join the flames of war, rewriting the true meaning of atonement with sincerity.