"Gun God" is adapted from the comic version of TRIGUN (トライガン) by Mr. Yasuhiro Naito. The story begins with Meriru and Miri, two girls who claim to be from the Bellunati Insurance Association, hunting for clues to the "Great Hurricane of the Century". But when the two of them met this "red clothes, golden hair, and earrings" Faxiu Stanbitt, they could not imagine that he was "the dangerous person who destroyed a city overnight, the most dangerous wanted criminal in the legend". How could this gentle man who shouted "LOVE＆PEACE" all day long and loved donuts like his life be the extremely evil Faxiu. In the subsequent journey, they took care of each other, helped and protected many people in need, and went through many dangerous situations together and became good friends. Everything was peaceful until the appearance of GUNG-HO-GUNS, everything changed, and Faxiu even started a killing spree. What is the relationship between this super killer group GUNG-HO-GUNS, which "takes the extermination of mankind as its own responsibility", and Faxiu? What challenges will they face?