"What the hell... is that thing?!" Guts' thoughts were interrupted when three rockets escaped from its hulking metal arm, headed straight for him. He dodged the first missile, then pulling his sword off his back and using it to hit the other ones out of the air like a baseball bat. "RRRrrrRRRRAAUGH!!!"Charging at the Cyberdemon, he jumped, using all of his strength, momentum, and weight to plunge the blade straight through its chest, then sticking out of its back. "DIE!" Finally he pulled the sword back out and in one solid movement the demon was decapitated, its head landing with a loud thud. 

All Guts can feel now is rage. Rage over the village's homes destroyed. Rage over the deaths of so many people. Rage over how he didn't understand what was happening. Until today, he didn't even believe in demons, or angels, or God or anything spiritual, but looking down at the huge corpse he knew that had just changed. Why would a demon just appear out of nowhere?

"That was really impressive!" Guts' thoughts were interrupted by an approaching man in heavy green metal armor, a super shotgun strapped on his back. "What is that strange sword on his back?", thought Guts. 

"I've never seen anyone kill a Cyberdemon as quickly as you just did! And with so much rage!"

"You just sat back and watched as an entire town was slaughtered?!"  Guts punched him in the face, hard. "You think I can just kill a Cyberdemon on my own?! I'm not a god, and I'm pretty sure you were just lucky!" 

"Well who the hell are you?"

"I.. am one of the thirteen Knights of Aerospace, Corkus."