I Trade My Kingdom for My Sister

Traveling through Liangzhou in the four years of Guanghe and completing the task of unifying the world, you can return to the 1990s and have a millionaire net worth. Shen Yanben was determined to compete in the troubled times and rush to his own stability in this world as soon as possible. But the frail and sick little sister beside him became his only tie in troubled times. Suffering from cold syndrome, they searched for famous doctors to no avail. While fighting and expanding for years, the strange root causes of the disease hidden in the two brothers gradually emerged. The world is within reach, and the lives of loved ones hang by a thread. If he could only choose one of the two, how should he choose in this troubled world?