Mission: Reform the World's Mastermind

"This world, too, will be destroyed." The oracle's warnings never come with notice, and this time the culprit is the Northern Grand Duke, the ultimate mastermind destined to topple the Empire. Ella has already reformed three unruly princes into decent people, earning fame as the Imperial Court's top fixer. So the Emperor casually assigns her next target: the Northern Grand Duke. "...I refuse. ...Am I allowed to refuse?" "No." Thus begins her final special mission: turn the man who'll end the world into a proper human being.