Berserk male reader

Prologue

In this world, is the destiny of mankind controlled by some transcendental entity or law? Is it like the hand of God hovering above? At least it is true, that man has no control even over his own will. 

As the sun was setting over the horizon a withered tree littered with strung up corpses like ornaments could be seen, and if one listened closely they could hear the cries of two infants underneath the corpse of a woman, both were covered in blood and cold. A band of mercenaries soon approached the tree and were about to pass it until the only woman in the group who had choppy blonde hair and blue eyes had heard the cries of the infants, she picked them up with tenderness like that of a mother "Shisu what do you have there?" came the voice of a man with blonde hair, he looked into her arms and saw the infants "Shhh little ones it's alright. Gambino can we take them in?" the man now revealed to be Gambino stood there in thought. Though Shisu had recently suffered from a miscarriage and had gone insane she was willing to raise these two boys as her own "Alright Shisu, we'll take 'em in." this caused her to smile, she wrapped them up in blankets and the group moved on from the site "What are you going to call them Shisu?" she sat smiling next to Gambino looking at the two boys "This one will be called Guts." she said as she motioned to the infant in her right arm "And this one will be called (Y/N)." and she motioned to the infant in her left arm "Those are good names Shisu". 

Three years had passed and Shisu had become ill from an unknown plague and was only getting worse as boils had begun to form on her body, she eventually passed and Gambino blamed the two boys but didn't show it right away instead trained them how to fight as mercenaries, ever since the group of mercenaries found the two boys they were considered bad omens and were always cautious of the twins but with Shisu's passing the camp's consideration of them being bad omens only grew. 

The boys were now five and were getting better at fighting and were often taken into battle to give weapons to the adults in the camp who had lost their weapons, Guts would often be found going with Gambino to do his job while (Y/N) would go wherever he managed to carry himself but did his job nonetheless, often times the members of the camp would see hesitation in Guts's eyes while (Y/N) seemed to have what looked like curiosity to the bloody acts they experienced almost every day and it often made the adults unnerved that a child would find such acts intriguing, one day the boys were out on the field doing their job but one of the other mercenaries they were fighting against went after (Y/N) and the boy became ferocious as he jumped onto the man ripping his helmet off and scratched at the man's throat causing him to scream for someone to get him off but everyone was horror struck as the always calm and quiet child was ripping a man's throat out, soon the man's screams became silent and (Y/N) got off his corpse and quickly returned to his duties as to not get in trouble and so the battle waged on but Gambino thought the twins were devil children more so than ever before. 

Six years had passed and the boys now joined battles as mercenaries and earned their own money, Guts carried a giant sword as it was the only size of sword he was used to while (Y/N) had a pair of gloves with claws that extended three inches from the finger, both earned very little as Gambino would take most of their earnings, mostly Guts as (Y/N) would hide his reward in his gloves, but when Guts had killed his first man it was (Y/N) that got him back in the fight "Don't space out in the middle of a fight Guts." he told his brother and quickly killed one that was approaching from behind them, a cannon was heard and Gambino was hit causing him to get his right leg blown off. 

As Gambino was recovering from the other wounds he acquired the boys approached, Guts wanted to show he had gotten the reward for taking down a general while (Y/N) was just following his brother "Gambino! Look I got the reward for getting the general!" Gambino just looked at his dog petting it's head not even sparing a glance at the boys "Where's the meat?" he said in a cold tone "Huh?" was Guts's response "The meat. Where is it?" "I uh forgot." Guts said with head hung down Gambino stood up with his crutch and went to hit Guts but (Y/N) grabbed the crutch that was going towards his brother's head giving a deadly glare towards Gambino "You should calm down, it was a simple mistake." was all he said in a quiet tone causing Gambino to growl as he steadied himself on his crutch and the two left to get what he wanted. 

That same night a thunderstorm could be heard as rain pounded on everything as flashes of lightning were seen and distant claps of thunder were soon heard afterward, Gambino went into Guts and (Y/N)'s tent with sword in one hand and his other grasping his crutch white knuckled with anger as the only thing taking residence on his face, but as he entered the boys woke up as thunder had boomed louder than some of the other claps of the shaking sound "Gambino?" Guts had managed to get out of his mouth before Gambino swung his sword down only splitting the pillow while (Y/N) got ready to evade an attack if one was aimed at him his claws were on the other side of the tent with his brother's sword  that was leaning against the table with a lantern, "You both should have died long ago, instead Shisu died in your place." he swung again cutting across Guts's nose then quickly turned to (Y/N) who was ready to dodge the sword but what he didn't expect was Gambino to swing his crutch at his head leaving him slightly dazed but moved to the side fast enough that Gambino's sword stabbed his shoulder, "What did I do that was wrong? I take you both in and what do you do, you both curse me!" he went to finish off Guts but Guts stabbed Gambino's throat causing him to fall knocking over the lantern breaking it "Boys whats going on in here?" a gasp immediately followed as the man seen the body of Gambino with Guts holding his sword covered in blood, the next events that quickly followed left the boys at the bottom of a long fall both injured and had nothing but each other and their weapons questioning if getting up from the fall that should've killed them was the right choice.