The development of the times is accompanied by the depletion of energy, and the world has entered chaos. However, an accidental discovery of a new energy source—the core of antimatter has revived hope for mankind. The good times did not last long. Due to unknown interests, antimatter leakage led to positive and antimatter An annihilation effect occurs, which leads to disasters and mutations all over the world. Human beings become stronger due to the opening of the gene lock, and at the same time, the tide of genetically mutated corpses, highly intelligent mutants, judges, blood clan shadow clans, etc. appear, which also allows humans to enter Unprecedented period of struggle. The young Klia Caesar possessed an unknown genetic secret, and was transformed in blood and fire. In this world of gun gods, who will he walk with and where will he go? Can he become the legendary Gunslinger, expose the dangers of the world and protect everything?