Transmigrated to Ancient Times, I Finally Started Striving

In the real world, Chen Qiufeng can't compete with his peers. In an age when food and drink are plentiful, he has no ambitions, and gradually decides to coast through life. Then an accident sends him transmigrating to another world, into an ancient era with backward productivity. There, he has to work hard to survive. If he doesn't strive, he'll be poor and hungry, and any natural or man-made disaster could threaten his life. With no other choice, Chen Qiufeng begins his struggle to make a life for himself in the ancient world!