Start with Extraterrestrial Robots

A male robot was left behind by a human probe on its way to Saturn. One day many years later, this robot named Guangshu was summoned by some mysterious signal and returned to Earth. On earth, he gradually understood his past and realized that the current level of civilization on earth is low. The civilization of his planet has reached the second level civilization and is moving towards the third level civilization. He hopes to help humans on earth improve their civilization level as soon as possible, but in the process, humans do not believe him and even choose to imprison him. Another female robot, Gu Yu, tried her best to save Guangshu, and they even came together and developed feelings. This feeling was strongly opposed by the civilization of the earth and the civilization of Guangshu's planet, so a war broke out between the two sides...