Killed from the Start? I Slay My Way to Becoming an Emperor for the Ages

I transmigrated and became the useless emperor from the history books, who died suddenly after just three days on the throne. The good news is, I awakened the Emperor System. Every time I avert a death crisis, I gain another day of life, and can unlock heaven-defying rewards like 【An Emperor's Aura-Reading Art】 and 【Possession by a Legendary General】! The bad news is, every official at court wants me dead. The empress dowager gives me poisoned wine, my concubines send poisoned pastries, the chancellor plots to usurp the throne, and even martial-world assassins are lining up to await my death. Just as everyone thinks the Great Yin Dynasty is about to fall, I smile. “If the history books call me a tyrant, then I'll show you just how tyrannical I can be!” I turn the poisoned wine around and send the eunuch to his death, curse the chancellor into a faint right in court, confiscate corrupt officials' estates to fill the treasury, and personally lead a campaign to crush the rebels! By the time the history books have rewritten the “incompetent emperor who died suddenly” into an “emperor for the ages,” those century-old monsters hiding behind the scenes and stealing the nation's fate finally realize: this mortal emperor has become the sovereign of heaven and earth! Not even the history books get to decide whether I live or die!