Time Travel: I Made Progress in Ancient Times

In the real world, Chen Qiufeng was no match for his peers. In an era when he had no worries about food and drink, he had no ambitions, so he gradually chose to settle down. Once you accidentally travel back to another ancient world, you have to survive in an ancient world with backward productivity. If you don't make progress, you will be poor and hungry. If there is a natural disaster or man-made disaster, you will easily have a survival crisis. Chen Qiufeng had no choice but to start his struggle in ancient times!