Dian'er is a beautiful and intelligent little boy. He is in poor health and cannot participate in normal life. However, Dian'er lives a very happy life every day with the help of his elder brothers Qin Yue and Xiaojie in the orphanage. But as time goes by, the life that Dian'er does not remember will eventually turn into trouble and appear around Dian'er. The true face of the world's most mysterious killer training camp will also be revealed bit by bit, including the story of Dian'er who has lost his memory, Qin Yue's hidden life experience, Xiaojie, a living treasure, and the organization behind the scenes that is unknown to the world. The basic style is a sweet article.