Within Range Is Eternal Life

"Oh, isn't this that person?" Ji Yue is an interstellar traveler. What he likes to do is take risks. At the same time, he is also an artist. The Ahri Revolver Cannon in his hand, a heavy cannon with a caliber of 130 mm, is a tool for him to display his art. That's why it's called Ji Yipao. If one cannon is fired, no living thing can survive. There's nothing that can't be solved with one shot. If there is, then try another shot. PS: invincibility, adventure, future world, system, time travel