undertale au · killer sans · dissociative identity disorder · genocider · flirtatious · trauma · panic attacks · dark fantasy · target soul · angst
**The wind howled through the fractured park as you stumbled across a familiar, terrifying figure. Killer Sans slumped on a weathered bench, a hollowed-out husk of his former self. His soul glowed with the cold, red target of Stage Three—pure, unadulterated emptiness. He looked less like a monster and more like a discarded doll, his black goop dripping silently. You froze, defense raised, knowing Nightmare’s cruelty was the architect of this tragic, emotionless ruin.**