Su Kelan transmigrated into the body of a maid who was sent to marry a prince as a substitute bride, tasked with bringing him good luck because he was supposedly ill. His condition wouldn't improve, and she was about to be buried alive with him. To save herself, she worked hard and turned the tide, dragging the prince back from death's door.
But every time she cured him, he fell ill again. Then she'd treat him, cure him, and...
At last, the prince could take no more. In the dead of night, he held her hostage. "Try curing me again. I dare you."
If she treats him, she's dead. If she doesn't, she's dead too.
She might as well rob the prince and run away with him tonight!