Rebirth in Hard Times

When he woke up, Wang Ba returned to a thousand years ago. There are no home robots, no nano-armors, no smart life assistants, no life-extending medicines, no fully intelligent and automated manufacturing factories, no virtual universe, and no realization of energy freedom. Nothing. Unfortunately, Wang Ba returned to this era again, but fortunately, he came back with a nano battle armor and a smart life assistant. In his last life, he ate and waited to die. In this life, he will become a trendsetter of the times.