Five-year-old Gu Wanxing is the most cherished child in the Gu family, and a little lucky star who came to the mortal world carrying good fortune. Innocent, kind-hearted, sensible, and considerate, accompanied by her guardian beast Pipi, she gradually learns to help her family in her own way. As the days pass by, the life of the Gu family slowly gets better, her elder brothers get the opportunity to study and grow, and each family member finds their own direction. Growing up amidst familial affection and companionship, Wanxing also brings warmth and kindness to more people around her.