Everyone Wants to Survive, Starting with an Asteroid

[National time travel + stocking up and upgrading + multiple female protagonists + interstellar survival + decisive killing] When Ma Xu opened his eyes, he found himself lying on an asteroid with three beauties. Without a system, they could only collect supplies from treasure chests on those rocky planets, and they would face the sudden arrival of the Zerg at any time. Ma Xu and his women, holding sky nets, capture interstellar clouds to condense the atmosphere. Capture solar particles to condense the sun, capture lunar particles to condense the moon... In this vast universe, everything must be collected with their hands. Their asteroids gradually grew larger and larger by constantly devouring interstellar dust and planetary debris, and gradually grew into a supercontinent spanning hundreds of thousands of miles, heading towards the distant Large Magellanic Cloud...