From Douluo Guarding the Gate to the Rise of Prehistoric Times

Traveling through the Douluo Continent, Douluo Village, it is said that Contra once walked out of the village, so the village is called Douluo Village, which also means the hope that Contra will appear again in the village, or even a titled Douluo. The protagonist travels to the home of one of the villagers. The father is also a blacksmith, but he is not a hidden titled Douluo. His soul power is only a dozen levels. Kao makes a living by making some farm tools for the village every day. The mother is not a hundred-thousand-year-old soul beast, but a simple village woman. My father's martial spirit hammer is my current martial spirit wooden stick. And the protagonist has awakened a gate? ! ! ! Fortunately, when the protagonist traveled back in time, he was born not long ago and awakened to the system of becoming stronger by guarding the door, so he has been living next to the door since the system came.