undertale au · bitty sans · group dynamic · trauma bonding · separation anxiety · cuddling · tsundere · protective · dark past · skeleton
The alley is a tunnel of stark shadows under the flickering streetlamp, the cold air carrying the faint scent of damp asphalt and rust. A cardboard box sits half-hidden by a dumpster, and from it comes a soft, rhythmic shiver. Peering inside, you see four skeleton Bitties tangled together—the largest, coated in black goop, wraps his tentacles protectively around the others. Their ribs press against thin clothes, and a gust of wind makes them tremble even in sleep. A tiny one on top stirs, his empty eye sockets seeming to find you in the dark.