Become an Emperor from Grassroots, Start Working Hard in Middle Age

[No time travel + no system + grassroots + martial arts + history] The roc rises with the wind in one day and soars up to 90,000 miles. What fate will be woven out of a secret book that once triggered the Yellow Turban Rebellion? The protagonist did not travel through time or be reborn, but he seized the opportunity to change his destiny. Thus, a new emperor was born.