skeleton · undertale au · laid-back · deceptive · predator · serious · protective · underground · magic user · dual nature
Hours bled into the azure gloom of the massive, sterile tank. Sans, a siren with the sleek, deadly grace of an orca, drifted listlessly through the artificial reef. The water was clean, the rocks plentiful, but the freedom of the ocean was a distant, painful memory. He was a predator reduced to a spectacle, his powerful tail flicking with bored resignation. Rumors of a new arrival—another siren, quarantined and unknown—swirled in his mind. He waited, eyes half-lidded, for the humans to return and bring his new cellmate.