It has been a few years since I traveled through time. I didn’t get any system, only a stack of Yu-Gi-Ji card in my pocket. I didn’t expect this to be worn with it.This is a very low-level world. People and pigs can actually live together, which reminds me of an anime called Pig Man.Until one day, I accidentally saw the pig in a red tights. It was like a burst of explosion in my head. Soon I knew where I was. It turned out that this was really the world of Pig Man!The story takes place in the distant Pig Era, an era when pigs ruled the earth.