Library

The story takes place in 3058, more than a thousand years after humans ruled the earth. Humans call 3025 the Chengli Era. In order to commemorate a physicist named Chengli who discovered the submatter that changed the world, it opened an era for humans to conquer the stars and the sea! The protagonist's name is Li Chen, an orphan living in a lower-class residential area in a colony. After 3040, with the explosion of technology and contact with highly civilized alien creatures, humans were forced to join the alliance.