How to Overcome Being Forced to Be a Good Person After Being Transformed into a Demon King

After his sudden death, Liu Zijin found that he had traveled through time and became Liu Ge, the villain of the novel "I Want to Cultivate Immortality". What was even more tragic was that he was forced to sign a contract with the "I want to be a good person system". He must do good people and good deeds in order to survive. As a result, the style of painting changed, the Demon Lord helped the old woman water the water, the Demon Lord helped the workers build the house, the Demon Lord rescued the disabled man, etc. Liu Zijin was afraid that his identity would be exposed and he covered his little vest tightly, but why did the crippled man look at him more and more strangely.