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My rebirth is the pinnacle. I actually became the richest man in the world Bill's grandson. My grandfather and father died, and I just inherited hundreds of millions of dollars in property. The system asked me to build mechas in the deep mountains and old forests...

The source of human development on earth! Human mother. Humanity has experienced the age of ancient apes, the age of great apes, the modern human age, the old (new) stone age, the cold weapon age (bronze and iron), the hot weapon age, the nuclear weapon age, the information age, the aerospace age, the cell age, the starry sky age, the stellar age, the navigation age (star sea), the starry sky plundering age... (Fiction)