There is more than light in the world, there is darkness under the light. As for the evils of human nature and the problems of the system, it goes without saying that there are few in the movie. What I want to talk about here is assimilation. You can think of the adoption home as a micro society. We are always silent like ghosts. Such a person, who has self-thinking and sticks to challenge the rules? How much is silent? Too silent to assimilate alternatives.