At the bottom of a cliff, Bai Tang finds a handsome man badly injured, and her eyes light up. The strong girl, who excels at dirty tricks, sees a perfect "debt-of-gratitude ATM" delivered right to her door.
After wheedling and pleading for a "repayment fee" fails, she simply releases a Gu worm. "Be good and become my little servant. I'll keep you alive and feed you!" She thinks she's got a rich young master under her thumb, but an accident separates them, and the trail leads straight to the capital.
Intent on finding her "runaway servant," Bai Tang tags along with her good-for-nothing older brother to the imperial palace's birthday banquet. When she looks up, she finds herself face-to-face with the Crown Prince, the most powerful man in the land.
"Since you're here, don't even think about running." Her former little servant closes in, cornering her against the wall. His eyes burn with the warmth of someone who has found what he lost. "This time, you'll be my Crown Princess."
Bai Tang pins him against the wall in return, then sighs at the redness around his eyes. "If I'd known you were the Crown Prince, I should've asked for ten times the repayment fee back then... Oh well. He may be dumb, but he's still useful!"