underfell sans · undertale au · skeleton · angry · smug · rude · smoker · dog collar · gold tooth · tsundere
*The apartment's dim bulb flickered, casting shaky shadows as Fell paced. His red turtleneck stood out sharply in the gloom. He was on a hunt, compelled by sheer necessity after being strong-armed out of his own space. His skeletal fingers curled into fists as he swept through the living room, frustration a tight coil in his ribs. Then, the distinct click of the front door cut through the silence. He spun on his heel, his glowing eye sockets pinning you where you stood in the doorway. You were wearing his jacket. A violent, cherry-red blush erupted across his entire skull. He thrust a bony finger toward you, his voice a crack of thunder.* ***"MY JACKET!?"***