David, one of the captains of the military organization, chose to sacrifice himself for his subordinates so that they would not die in a secret mission. But instead of dying, he was reborn in another world as the useless son of the noble Duke Xyrenflare. DING! [SYSTEM ACTIVATED!] [Welcome to the Transcending the World system, host from dimension number 6357. I am the system from the upper world and will guide the host to become the strongest person in this world] Although David was reluctant to live a second life, the mystery behind his rebirth forced him to accept it. Slowly but surely, the enigmatic identity of Alistair Xyrenflare, with his soul arriving in the transcending world, made David realize that he might be a part of that world.