Sister, I've Caused Trouble Again

Big Sis has caused trouble again and again! Three years ago, she poisoned eight vassal kings with a pot of "Dragonblood Tea." Last month, she dumped a diplomatic mission from the Western Regions into the moat. And today, she actually swapped out the Imperial Jade Seal during the Heaven-Worshipping Ceremony! The court officials begged the empress to get rid of this menace, but the icy beauty on the phoenix throne simply swept her vermilion brush across the memorial and declared, "Approved. Send her to marry into an enemy state!" As she was tossed out of the city gates with twenty chests of dowry, a prompt suddenly blared in her mind: [The Ultimate Scapegoat System activated! The bigger the blame you take, the greater the rewards!] A princess sent back three times after being dispatched for a political marriage? Not anymore. Now she's a wild demon who has the rulers of three kingdoms writing surrender documents through the night! (Think the System is her golden finger? Wrong! Her real golden finger is...)