Killing the City, I Merge All Things to Become a God

Travel through the apocalyptic city where monsters have descended. There are ancient martial arts masters here who can move mountains and rivers with their fists. There are creatures here that transform people into humanoid beasts. There are alloy armors and mechanical ascension here. In order to survive, the only way is to keep killing and become stronger. Fortunately, I woke up to the fusion system of all things. A thousand Gatling guns can be fused to awaken the materialized Gatling with unlimited bullets. It can also add fire, toxins and other characteristics to become a flame Gatling or a poisonous Gatling. One hundred thousand tons of sulfuric acid, fusion, awakening the law of corrosion, attack with corrosion, everything can be corroded. A thousand pieces of alloy armor, fused, awakened materialized armor, blended into the blood of monsters, amplified into elemental breeding armor. A few years later. The beast demon god came through the sky. Looking at the nothingness, I was stunned. I haven't attacked yet, but you actually fused the entire planet and became a god? This novel and its characters are purely fictitious. Any similarity is purely coincidental and should not be imitated.