On February 28, 1939, Kars acquires the Super Aja and uses it along with the stone mask to become the ultimate being. Now immune to the sun and able to use Hamon, Kars's only desire is to kill Joseph. Joseph steals a Nazi plane and tries to crash it and Kars into the volcanic island of Vulcano. Joseph and Kars escape, but the shock of the plane crash causes a volcanic eruption. Kars attempts to kill Joseph with Hamon, but Joseph instinctively holds up the Super Aja, which causes the energy to make the eruption climax, sending Joseph and Kars flying into the sky on a large rock. Kars is knocked into space by volcanic debris. Unable to die, he drifts throughout space for eternity, eventually ceasing to think. Returning to Earth, Joseph is nursed to health by Lisa Lisa's assistant Suzi Q, whom he marries. In the epilogue, set in 1987, an aged Joseph takes a flight from John F. Kennedy International Airport to Japan, where his daughter and grandson live, leading in to the first chapters of the following story arc, "Stardust Crusaders".