After Rebirth, Can I Become Stronger as Long as I Do Good Deeds?

Not a holy scripture! In the last life, Mu Yun accidentally obtained the Holy Sword. But he was betrayed by his teammates. They wanted to kill him and take the holy sword for themselves. And Mu Yun, thinking that if I can't get it, you won't be able to live well, he destroyed the holy sword in horror. But in the next second, the golden light of the holy sword in his hand emitted. And he also went back to 20 years ago. In his memory, in three years, Haocheng will be destroyed by the beast tide and cease to exist. He unexpectedly discovered that he could become stronger as long as he did good deeds in this life. It seems that this was brought to him by the Holy Sword? He decided to change everything in this life and make up for the many regrets in the previous life. He only had the lowest level of qualifications in his previous life. This life is destined to be different from his good-for-nothing last life.