Villain: in His Old Age, He Trains the Nine Rebels

[Villain + refreshing article + filial disciple emerges under the stick + selfishness + training] Cao Xuan traveled through time and became the villain master in fantasy novels. All nine traitors betrayed him, but he was given the system to train traitors. At the beginning, he encountered a traitor who was testing him. Cao Xuan used his tactics to train the traitor. In the end, it was discovered that the traitor was unwilling to repent in order to protect the son of destiny. A Japanese comic plot suddenly flashed in Cao Xuan's mind. "You too..." From then on, Cao Xuan embarked on a path of constantly training rebellious disciples.