In our world, there are always some secrets that most people don't know. Our world is divided into the world of ordinary people and the world of non-ordinary people. The best way to hide a person is to be like most people, and when our world is dominated by capable people and strangers, the world will move towards an unpredictable future. The world of mathematicians is mysterious and unpredictable, and the protagonists gradually understand this world through experience.
If I need to take a leave of absence, I will resume updating on July 7th.