Gun Demon from Another World

He is the most wanted criminal in the universe, an Avenger walking among the stars, and his double guns are the nightmare of all alien civilizations! In the final war, he died together with the enemy, and finally traveled to a world where the soul of soldiers was respected and he cultivated his strength. He was reborn into a cowardly young man who was always bullied. The boy's awakened soldier soul turned out to be the twin guns he used in the previous life! As the most evil wanted criminal ever, what sparks will he create in the world with the body of this cowardly young man and the two guns in his hands?