My Froggo Thinks I'm Weak, So It Snuck Out Overnight to Steal Me Some Armor

The world undergoes a cataclysmic change, and a sandstorm bears down! A yellow dragon rises in the distance, while terrifying monsters lurk within the howling winds! Doomsday arrives. A zombie horde erupts, civilization falls, and morality collapses! Monsters appear all over the world, slaughtering everything in their path. The entire Blue Star becomes a killing field! There is no paradise left on earth, and no peace anywhere in the world! How can humanity find a way forward? Long Yan, reborn, unexpectedly obtains a System and bursts onto the scene with a Doomsday System! He builds shelters, creates mechanical lifeforms, and rises to power! Armed with famous blades, he cuts a swath through ancient reptiles and zombies, defending the dignity of humanity!