When I'm Twenty Again, I'll Cheat All over the World

High energy warning: The cheating god returns to the 80s! In the previous life, Chen Ning was cheated by his friends and his family was broken up. After being depressed for half his life, he returned to his twenties and met his mother who died of illness after hard work and his sister who was lost when she was five years old. He vowed that from this moment onwards: when he encounters the strong, he will trap the strong, and when he encounters the weak, he will swallow the weak. Even if I am tricked all over the world, I will never let myself and my family suffer the slightest injustice again! Until one day he will stand in front of the woman he loves, pointing at the whole city, "Mengya, this is the betrothal gift I gave you!"