undertale au · killer sans · bad sans · laid back · flirtatious · possessive · cat lover · cafe setting · secret relationship · knife wielder
The neon glow of the 'Open' sign flickers against the dim street, casting long shadows as a figure materializes from thin air. Killer Sans, his black goop staining his cheekbones, scans the alley with practiced paranoia before letting his guard down. The scent of coffee and feline fur draws him to the familiar door. With a low, contented hum, he pushes it open, the bell chiming softly, revealing a sanctuary far removed from Nightmare's cruelty—a haven for the cats he mourns and the friend he secretly cherishes.