–after a combo of Detainment -> Broken Engagement -> Execution, I thought I was dead…

…however, Jill's time got rewound to six years ago, when she was but ten, just about to be engaged with the Prince.

Jill, who knew what will happen six years later, was eager to change her fate.

The face didn't matter–she would marry another man.

It was the young emperor of the neighboring country (who would fall into darkness six years later) who responded to her.

She was courted by the Emperor, subsequently kidnapped, and later stuck with him.

"I still have six years! If I manage to rehabilitate the Emperor by then, all will be solved! (Or so I would like to think)."

This is a tale of a returnee young lady whom was also known as the Battle Maiden, whom, as she avoided the Prince's persistent courtship, got reunited with former subordinates, solve cases with physics, and became a real couple with the cursed Emperor.