Interstellar Self-Improvement

Traveling to an ordinary garbage planet in the interstellar era, Li Si was so hungry that he wanted to eat tree bark, but there seemed to be no trees! Union Military Academy? Turn on the mecha and fight against the Zerg? What are the normal uses of medicinal materials and food? Li Si: Actually, my dream is world peace~ Rely on having the brain of Chinese civilization to walk your own shameless path...