Allen Dreyar is the number one assasin in his world. Due to keeping this title yet not accepting any jobs for the last three years his colleagues were filled with so much envy that they decided to kill him off. But in his last breath Allen was able to lead his enemies inside his base of operations and bring them with him to the grave. 

When he came to he was in another space which was completely white. He met a person calling himself god and told him he was needed in another world. Follow Allen as he reincarnates into another world with the same abilities he had along with some additional powerups.