"Quiet Naughty" mainly talks about the unhappy life of a little girl growing up. After her cousin moved into her house, her mother asked her to let her cousin do everything. Lin Jingtao, who had no father's love, was even less cared for, but she always used her naturally optimistic and cheerful personality to hide it. She was so beautiful that she was ostracized by her classmates when she grew up, but she was always isolated and helpless, burying her grievances deep in her heart. When the secular controversies stopped, her inner panic and anxiety did not improve at all, which eventually led to mental illness. On the other hand, as Lin Jingtao herself said: "Everything is a specimen, and one day I will be a specimen myself." Lin Jingtao, who was imprisoned by the world, was actually imprisoned by herself. She encountered setbacks and became decadent, which was also the reason why she could not break free. Lin Jingtao's whole world is her mother who is as helpless as her, and her cousin who doesn't understand her at all. Her cousin grew up with Lin Jingtao and gradually fell in love with her cousin, but this kind of love cannot change Lin Jingtao's fate of depression at all. This is a short novel with no ups and downs in the plot, but it has a great enlightening effect: human mental illness sometimes occurs due to external stimulation, and kind people should be cared for. I hope that the world will not be too ruthless, and that everyone can comfort themselves and accept themselves calmly when encountering adversity.