The Mensai planet has blocked the development of human science and technology by using high-shielding technology that is incomprehensible to humans. All theories discovered and verified by humans have been sealed as no longer understood or even unreasonable.
Humanity, which has been progressing slowly, is now sealed in an occlusive iron box. Civilization is no longer the unique and supreme glory they possess. Humanity can only be taken over by seemingly reasonable means that have higher civilizations such as the Mensai planet to help develop.
Humanity resisted until all available weapons crashed into the Mensa alien spacecraft and disappeared one second before the explosion.
After humans witness the technological gap and accept the futility of resistance, the coalition government decides to negotiate peace with the species that invades the earth. All the resistance and conquest happened to stop on the eve of mankind's imminent loss. In order to continue human civilization, they finally chose to sign a treaty with the Mense people to preserve the survival rights of the last remaining humans on the earth.
Humanity was defeated and sued for peace. Of course, the Mensai people happily accepted this result. They entered the earth with an attitude of integration, and they also wanted to survive. The existence of human beings could help them better adapt to the earth. Human existence may have a greater purpose.
Intention: I really just write casually and everyone can read it casually.