Percy Jackson X OC - Ruthlessness -

"Alright everyone, pair up, Percy you're with me." Luke Castellan stood in the Arena, pairing others off as I watched. Magic trickled into my ears as a boy placed his hand on Percy's shoulder. "Good luck," the boy told him. "Luke's the second-best swordsman in the last three hundred years." I smirked, that title firmly belonged to me. "Maybe he'll go easy on me," Percy said. Clearly, he was hopeful his words would prevail.

Though Luke showed him thrusts parries and shield blocks the hard way, the kid had spirit. I shouldn't really be surprised considering he is THE Percy Jackson, son of THE Sally Jackson. But with every goddamn swipe Luke sent his way, his body became more battered. I slowly made my way into the Arena as they all sat down for a quick water break.

"Okay, everybody, circle up!" Luke ordered them, getting compliance from his students. "If Percy doesn't mind, I want to give you a little demo." He smiled at the boy. "Oi, Casty! Lemme have a go at the newbie." The sword fighters flinched at my voice, not like I particularly cared. "You sure, Emiya?" Surprise littered his face.

"Very, I'll show him that disarming tech you got steamrolled by." I couldn't help the smile from breaking out. "Who's she?" Though his voice was low, I could still hear Percy whisper to the boy next to him. "SHE can hear you, and her name is Shirou Emiya." I turned to him, pointing at myself. "Front and Centre water boy." Confusion glanced across the Hermes boys, but they all stood ready to watch him get his shit rocked.

"Now watch the blade." He looked puzzled where I pulled my sword from but... He'll find that out later. "This disarming technique." I put my blade angist his and rested it on the hand guard, "I'm teaching you how to twist the enemy's blade with the flat of your own sword so that they have no choice but to drop the weapon." His arm moved uncomfortably as he tried to compensate for my moves, in but a moment he folded and the blade dropped form his hands.

"Now, pull out that pen of yours and let's do battle!" He seemed surprised I knew of his Riptide, kek moment honestly. "Luke," I got his attention drawn to us. "Refere." He sighed and steped between us with a hand. "First Contact, pull away after. Ready, Percy?" Unease upon the 12-year-old's face but this is fine, for me at least.

I took a step back as luke backed off, Percy rushing forward with the grace of a baby lamb, his sword glanced off my own. "In all my years of living, It isn't very often that I get pissed off." Despite my back to the boy, I walked, dodging each and every one of his strikes with foot work. Confusion came from the crowd as I sang. "I try to chill with the waves."

Honestly- *Clang* The flat of my blade pushed him off, he huffed as he steped back, settling into a defensive position. His eyes roamed me, thinking. "But damn, you crossed the line~" I held the note for a second before I was infront of him, blade pushing him down as his footwork failed him. "I've been so gracious~ And yet, you hurt this son of mine!"

His feet adjusted, gaining proper grip as I let a trickle of killing intent wash over only him. The smile stretching my lips. "That's right, the cyclops you made blind, is mine." I could feel the confusion on the other campers. I backed off to the water table, the boy following me as I reached for an open container of water. "I'm left without a choice and without a doubt~" *SPLASH* I could see the energy invigorate him as he was drenched in water.

"Guess the pack of wolves is swimming with the shark now~" He was on me again, thinking less and just acting. His blade whistling through the air as he lunched swipe after swipe, no longer holding his blade in two hands. "I've gotta make you bleed, I need to see you drown!" I clashed against his edge with my own, pushing his blade up and leaving him wide open. "But before you go, I need to make you learn how~" That kick was going to bruise if he wasn't drenched.

The clouds gathered in the sky, darkening during this fight. "Ruthlessness is mercy upon ourselves!" One of the campers sung after me, just falling into the mood. "Ruthlessness is mercy upon ourselves!" Cheers came around the arena as the little wolf in front of me tried to fight. "Ourselves!" I jumped to the side, his blade smashing into the ground with a heave.

"You are the worst kind of good 'cause you're not even great!" He stayed where he was, his eyes tracking me as I circled him. "A Greek who reeks of false righteousness, that's what I hate!" The water on the ground swirled in a corner, unknown to those who weren't paying attention. "'Cause you fight to save lives, but won't kill and don't get the job done~" I relished in the anger in his eyes, wanting him to hate me, to strike me down where he stood.

"I mean, you totally could have avoided all this had you just killed my son." Once more, people looked puzzled, but a couple clever campers clearly understood where I was drawing from. "But no~ You are far too nice, mercy has a price!" Once more, I took a thing of water and splashed his face as he rushed me, his eyes closed as he swung horizontally to try to nick me.

"It's the final crack, we're bound to break the ice now! You reveal your name, then you let him live~ Unlike you, I've got no mercy left to give 'cause!" My blade vibrated with each and every clash of our blades, he did what I knew would be his signature move in the end. Giving up all thoughts and into pure instinct, he just adjusted to blocking and parrying my strikes when I gained a second sword.

"Ruthlessness is mercy upon ourselves!" I pointed with a blade at another camper, my right stuck in a clash against an angry Percy, they sang my line slightly off-key. "Ruthlessness is mercy upon ourselves! Ourselves!" I locked both into a bind against Percy's Riptide, the metals grinding against each other into a harmonious sound to my ears.

"And now it is finally time to say goodbye, today you die." I pushed again, over powering his water given strength and landing him on his back foot as I pushed forward. "Unless, of course, you apologize" Strike after strike as his stance became less firm and panic grew on his face. "For my son's pain and all his cries." He fell backwards, my blade put in front of his throat, as he looked upon me with fear.

Luke sighed and walked up, my blade intercepted, being pointed at him.

"The line between naïveté and hopefulness is almost invisible." Clearly, people were confused as I had won, yet stopped Luke from calling it. "So close your heart, the world is dark and-" His hand grabbed his sword, brining a smile to my lips. I pulled my sword back, readying up for a stab to his throat. "Ruthlessness is mercy." I'm sure shadows covered my eyes as they glowed fire-red. "Die." I thrust.

Percy's sword deflected my own as he rolled out of the way, I rolled with the stab and across the ground. Standing up, I was relentlessly assaulted by a stone faced child. His blade singing in glee as the battle continued till I purposefully tripped on a rock and landed on my ass wide open. Already, Percy went for the stab, his blade stopping just shy of my throat.

"Any last words?" He was thinking again, his eyes searching me to figure out what I could do next. The arena waited in bated breath as Chiron finally arrived. "All I gotta do is open this bag!" Confusion crossed his face. "What?" I kicked out his legs in a windmill back to my feet, fingers stopping his blade from retaliating as I chuckled.

"You fight with instinct, kid, and you do it well. Stop thinking." I let go, his arm falling to his side as he laid flat on the ground. "Make sure to come meet me in the smithy when you need any help with your weapons... I'm just gonna call ya Salt." I turned away, hands sliding into my pockets as I gained new ideas for blades to forge.

...

"Who was she?" Percy asked Luke as he helped him up.

"Penelope, Head counsellor of Cabin 9. She took the title from Charles Beckendorf a year or so ago." Luke had a complicated look on his face, a smile yet not one.