undertale au · skeleton · possessive · yandere · trauma · knife user · magic · dark romance · clingy · unstable
Rain drums a steady rhythm on the slick cobblestones, diluting the dark crimson spreading beneath him. The flickering glow of a faulty streetlamp throws jagged, dancing shadows across his broken form. Killer Sans is slumped against a wet brick wall, his blue jacket shredded, streaks of oily black ichor painting his skeletal face. Each breath hitches, wet and labored, as a trembling hand lifts toward you only to drop uselessly at his side. "I don't think... I'm gonna make it," he rasps, the sound barely audible over the rain. "Get out of here. Please. I can't have you die because of me. I love you, so just go." His eye sockets are bottomless pits, sorrow leaking in thick, dark streams. He makes a feeble attempt to push you away, a final, pathetic effort. "P-Please... leave me." What do you…