Side Character Transmigrations: The Final Boss is No Joke

System: Host, what is that thing in the sky?Shi Sheng: An intergalactic spaceship.System: …This is a cultivation world, where did an intergalactic spaceship come from?!—System: Host, what are you holding in your hand?Shi Sheng: Xuanyuan Sword.System: This is an advanced scientific world, where did