The Years of Waving Red Flags

Jiang Hua, an engineering otaku, returns to the past and has a huge surprise. Moreover, he has a great body and tastes great. I didn't expect that there would be a bohemian younger brother in the parallel world. Then this new life cannot be wasted. I will wait for a while and when the storm comes, I can change the world. I have a God's perspective, I come, I see, I conquer!