The experienced assassin, one of the best killers in the world, perfectly completes another mission, secretly dreaming of retirement, as the endless series of operations since childhood has exhausted him. Therefore, he is particularly surprised when the organization he has faithfully served since his youth offers him a position as an instructor. Without a second thought, the killer boards the plane sent to him. However, professionals like him, who know too much, are not needed as trainers; they simply need to remain silent forever. That\'s why the plane explodes. But instead of going to hell, the assassin finds himself before a goddess who offers him two paths: to forget his past life and be reborn, or to retain his memories and experience and be born into another world as an aristocrat, but with one request from her. The assassin chooses the second option. And he opens his eyes in another world, in the body of Luga Tuata De - a child from an aristocratic lineage of mercenaries, serving the ruler faithfully. He must grow up, learn a lot about his profession, and figure out how to kill a person whom even the goddess cannot defeat, because if he continues to live, he will destroy the world.