Doomsday Refuge: I Have a Mecha Army!

Global catastrophe, the end of the world is coming. Earthquake! Tsunami! Zombie storm! The world is plunged into infinite panic... Su Ze is reborn! Go back to before the global apocalypse seven years ago. Bite! Get a doomsday shelter! What? Nautilus? Bite! Get the energy source crystal core! What? Can crystal nuclei fission infinitely? A powerful mecha army was born... Disaster day. Earthquakes occur frequently. Su Ze's mecha rescue team leads everyone out of the city shrouded in the haze of death! When the tsunami hits, Su Ze's Nautilus takes everyone into the deep sea paradise two thousand meters below! Zombies are everywhere, and Su Ze's Biological Research Institute has developed a special pathogen to control the zombies! Everyone came running to hug their thighs! Yulu sent you a friend request! Friends? Unnecessary! Shelter beds are scarce, those who are able can get them! Give you one billion! I just want a ticket for the Nautilus! One billion? This is the end of the world, and 10 billion is just waste paper! Unless... This novel and its characters are purely fictitious. Any similarity is purely coincidental and should not be imitated.