I Turned Back as Soon as I Became the God of War, and I Chose to Surrender to the Country.

The century-old Martial God shattered the void. Fang Shuwen failed to ascend. Instead, he returned to the modern city before time travel with his powerful skills. Before he could enjoy WIFI and air conditioning, he desperately discovered that one year later, the end would come and human civilization would be destroyed! Fortunately, he returned from the future of death! It also comes with a [Guard System] that can reward all things! Faced with the impending catastrophe, Fang Shuwen made a phone call without hesitation. "Hey, is this a country? I, the century-old Martial God, request to fight!" "I have mecha blueprints, genetic sequences, magical secrets... I want to hand them all over!" From then on, the Dragon Kingdom opened the age of myth! While others are still struggling to survive in the apocalyptic wasteland, we have already driven a starship to visit another dimension!