What episode is the silly child and the silly cat pumping bone marrow?

15 episode. According to the plot information of Stupid Children, in episode 15 of the drama, Fiona Fang secretly extracted the bone marrow of the little stupid cat for paternity test. "Silly Child" mainly tells the story of a little silly cat's optimistic, kind and indomitable positive attitude, which rekindles the hope of life for Gao's mother who has long been diagnosed with cancer and feels helpless about her son's future. This is a story of bravely facing difficulties and adversity.