Five-hundred-year-old koi spirit Yu Xiaojin has a one-night mishap with the phoenix deity Feng Jue. Afterward, she leaves a tael of silver as "feed money" and runs off. Two months later, she lays two eggs that hatch into chubby-headed fish babies with wings that breathe fire. Feng Jue issues a three-realm wanted notice and drags her back to the Parasol Tree Divine Hall, where she sweeps floors by day and he fakes illness to trick her by night. She sees through his scam, pries out the night-pearl, and flees to the East Sea. After a great battle at the Abyss of Gods and Demons, the two come clean with each other. In the end, the money-grubbing koi ascends and is crowned queen, living a chaotic, hilarious happily-ever-after with the tsundere deity and their two little troublemakers.