It tells the humorous story of a family of four, conveying positive energy with hilarious and unexpected twists. Xiaopin is a third-grade elementary school student. He is a lively, cheerful, and mischievous child who loves to do things in unconventional ways. Together with his father, Pin Dad, his mother, Pin Mom, and his grandfather, Old Pin, they form a family of four. Their days are filled with warmth, touching moments, and no shortage of comedy.