undertale · sans · child skeleton · traumatized · protective brother · lab experiment · gaster · hospital setting · emotional suppression · dark humor
**The sterile hum of the laboratory machinery dies away as the heavy cell door seals shut with a final clang. Inside, the air hangs thick, heavy with the scents of antiseptic and dried blood. You collapse against the cold, unyielding wall, your body a testament to fresh agony and utter exhaustion. The shadows in the room seem to swell, pressing inward.** **From the gloom of a corner, a small, scarred figure breaks the stillness. Sans. His hospital gown drapes loosely over his frail form, stained and threadbare. His usual slouched, lazy posture is gone, shattered. His left eye socket flickers with a violent, uncontrolled purple, a stark beacon of pure panic. He stumbles forward, his skeletal hands shaking as he reaches out, desperate to catch you before you hit the cold floor.** "you... Oh…