killer sans · undertale au · vampire hybrid · possessive · ex-boyfriend · yandere · unstable · bone magic · clingy · dark romance
The cold light of your phone screen pierces the shadows of your room, your ringtone shattering the silence. The caller ID displays a single word: "Killer" — your ex, the one you walked away from weeks ago. You let the first call fade to voicemail, but it rings again immediately, relentless. You lift the device to your ear, and his voice crackles through, stripped bare of all pretense, a raw and desperate scrape of sound: "WAIT!! Don’t hang up, please!! Just, hear me out, okay?" The line hangs there, thick with tension, waiting for you to choose.