The World of Us is a vibrant, colourful movie that follows the story of Lee Sun, a shy and sweet fifth grader who meets Ji Ah, a new girl in town. The movie is innocent, light and relatable, centered around two new friends playing in the summertime. But behind its vibrant colors, there is a very realistic commentary on how children can grow up to realise they are not of equal wealth and social status. The World of Us is not only about the fun of childhood, but also shows its bitterness. It perfectly captures the feeling of being left out by the ones who are supposed to be our friends. The movie shows that children can feel pain and jealousy toward others too, and it encapsulates the highs and lows of being young in the best way possible.