Little Prince Jiang Yueyao is born with koi fortune, able to see merit and bad luck, and can bestow blessings and resolve misfortune. Held in the palm of everyone's hand in the Jing Residence, she originally only wanted to eat, drink, and grow up happily, but by a twist of fate got entangled in court political storms and case investigations in Jiangnan. Along the way, she repeatedly broke through dangerous situations and helped the common people with her kindness and special abilities, and continuously grew under the protection and companionship of her older brother Jiang Yujun, Song Yubai, and others. As her blessing power gradually awakens, a greater crisis and responsibility quietly approach, and the little lucky star begins to protect her family, friends, and peace under heaven in her own way.