Great Tang: I've Lived Long Enough to Want to Die

Fang Zhengyue transmigrates to the Tang dynasty and discovers that he has gone from being twenty-four or twenty-five to a middle-aged man of forty. Looking around, he finds himself a gambler with no house, land, savings, wife, or children. He feels as if he has only come for a little sightseeing. But a day later, he awakens a System that will sell anything. Using the lifespan he buys from the System, he outlives three emperors and finally helps his wife, Wu Zhao, ascend the throne. When Wu Zhao dies at the age of 115, Fang Zheng watches his fifty-year-old youngest son succeed her. By then, he is sick of living and no longer wants to buy lifespan from the System. He just waits to die of old age, or he fears he might not be able to stop himself from taking his own life...