Doomsday: I Can Make Props Infinitely Upgradeable!

Slightly slower pace + invincibility + doomsday text Reborn into a doomsday world where darkness invades and zombies are everywhere, Su Yuan gets an infinite upgrade system, and everything in the world can be infinitely upgraded! Primary evolution fluid! Upgrade to **god level evolutionary fluid! Become a god in one step and conquer the world! Broken alloy sword! Upgrade to a **** magic weapon! With one slash, the sky is opened, and all realms are created and destroyed in a single thought! Old sniper rifle! Upgrade to the Eye of Death! Breaking the boundary between life and death, one shot penetrated the yin and yang of heaven and earth! ... ... Any props! After being upgraded in Su Yuan's hands, it can be compared to the innate treasure! This novel and its characters are purely fictitious. Any similarity is purely coincidental and should not be imitated.