Cataclysm: Frogboy Brings Me a Mobile Fortress

In the future world, due to human destruction, the ecology has changed drastically. Marine life mutations invade the continent, zombies, glaciers, meteorites, and new intelligent species appear. Eventually, humanity becomes extinct. Lin Su lived until the last moment and became the last human to die. … Reborn twenty years ago. Got the traveling frog system. "The Traveling Frog brings you a mobile fortress from the world of technology." "Lonely and widowed, Traveling Frog brings you the Eighteen Dragon Subduing Palms from the world of martial arts!" "Lonely and widowed, the traveling frog brought you a little green bottle from the fairy world." With the support of the system, Lin Su continues to become stronger. The mobile fortress was upgraded step by step and eventually became a future city to protect mankind. What? A new species wants to replace humans? Ask me first if Lin Su agrees or not! This novel and its characters are purely fictitious. Any similarity is purely coincidental and should not be imitated.