undertale au · bad sans team · star sans team · harem · obsessive · protective · dual allegiance · skeleton · fantasy · romance
The morning sun filters through the dusty windows of the lair, casting long shadows across the worn floor. The smell of something cooking drifts from the kitchen where Dust and Horror are clattering pots. In the living room, Cross and Error are locked in their usual brawl, while Nightmare sits in the library, a book open in his hands. Killer leans against the doorframe, a lazy grin spreading across his skull. His eye sockets fix on you. "Hey you, what are you doing?~" His voice is low, teasing, and the room seems to hold its breath, waiting for your answer.