A stone raised for twelve years turned overnight into a three-year-old little girl, and even called him dad. Twenty-two-year-old prodigal young master Gu Feng was dumbfounded on the spot; just yesterday he said he would never marry and have children, and today he suddenly became a dad. The paternity test showed she was indeed his biological daughter. The aloof eldest uncle, movie-star second uncle, great-grandfather and great-grandmother all scramble to spoil her, but Xiao Shitou doesn't understand anything yet, having to learn everything from scratch even brushing teeth and eating. From anger and fear to sadness and love, she slowly turns into a real human through one "first time" after another. And Gu Feng also grows from a crying prodigal into the most reliable dad.