Prologue
Bells rang in the hallway and blood was flecked on the golden walls. The pillars that supported the room were cracked from the fight with slashes and blunt force trauma. A skeleton with a single glowing left eye socket heaved. He wore a thick, padded blue coat, slippers and a pair of jogging shorts. He was short and big boned, giving him the appearance of more girth than he had. His chest and shoulders eased up and down as he breathed heavily despite the obvious lack of expanding lungs as the glowing eye shifted slowly between yellow and blue. "I thought... maybe we could be friends ya know?" He said with his voice shaky. In front of him stood a small young human who's eyes were filled with enmity flickered for a second. "Like there was some person in there that really wanted to be the good guy. But... maybe lost their way some how." Sans, the skeleton, tried not to let the beads of sweat innexplicably appearing on his skull and sliding down make him seem like he was at all nervous. "What do ya say, kiddo?" He asked, opening his arms slowly.
The human had brown hair and a striped shirt and looked confused and broken. They heaved too, cluching a knife in their right hand which was shaking. They looked up, their eyes flashed between red and green. Sans's eye sockets narrowed, shifting despite clearly being made of bone. He had noticed that happened when this human hesitated. Their eyes filled with tears as their hand holding the knife shook. "Sans I... I'm sorry... I... haven't been able to stop them." They dropped the knife and looked somehow completely different. Their eyes wracked with the guilt of their sins as their normally red eyes maintained the more natural green color. "It's been so hard."
Sans walked slowly towards them. "There there, it's okay." He said consolingly, keeping his arms steady and open only for his left eye to flash a vibrant yellow for a fraction of a second as he lifted up his hand and bones burst from the ground and burrowed through the flesh while spinning like drills and impaled the human through multiple points. The arms and legs had four bones jammed through them each. The torso had at least seven bones that had torn through the flesh with brute force alone. The human coughed up copious amounts of blood at this and the eyes shifted back to red as they hit the floor and twitched violently. The skeletons maw opened as he snickered slowly. "Geeeet DUNKED ON!" He finally bellowed. "Ding dong, the witch is dead." He added jovially before halting and observing the human as they twitched and shuddered on the floor, choking on their own blood, assuming their lungs hadn't been punctured. "But seriously, hellspawn." Sans walked up to the human and put a foot on their back in between the bones ramed through their soon-to-be-corpse. "If you're REALLY my friend... you won't come back." His eye flashed again as he glared at the human's red eyes staring up at him.
"I'll... kill... you... all." They sputtered out slowly and weakly.
"You already did." Sans pointed out coldly. "That's why we're here."
The human's faced twisted into a grin at this and their souls glowed.
Wait... souls?! Sans saw not one but two souls glowing inside this human. One shivered and cried as the other he could sense was more malevolent, less human. The world around him began to shake somehow and fade.
He had no idea how to react to this, except of course... Without thinking he summoned a bone in his hand and used it to stab into the human's back to try to manually grip the soul. He figured he'd go for the one that sensed off and got a firm grasp around it and could feel it wriggling. He wasn't sure if he should try to absorb it or if that was a bad idea but he had to do SOMETHING. He heard screaming in his head. "NO! LET GO! I'LL KILL YOU! I'LL KILL YOU ALL!" He started trying to absorb it live, thinking this was potentially a really bad idea as all of existence faded around him and he saw his own skeletal hand in front of him vanish in a sea of white.