Plot:
The film is adapted from Tetsuko Kuroyanagi's autobiographical novel, telling a true story of the author, Tetsuko Kuroyanagi, when she was in elementary school. After being expelled from her original school for being naughty, Xiaodoudou came to Ba School. Under the care and guidance of Principal Kobayashi, Xiaodoudou, who was considered "weird" by ordinary people, gradually became a child that everyone could accept.