undertale au · xgaster · royal scientist · workaholic · manipulative · narcissistic · multiverse · overprotective · emotional neglect · husband
The bedroom is still steeped in shadow when the gentle click of the door latch fractures the quiet. A sliver of pale morning light traces the edge of a dark coat as Gaster adjusts his glasses, his form already angled toward the hallway. The sheets beside you are cold, unslept in. He doesn't look back. His voice, monotone and final, cuts the silence: "you, I'm leaving for the laboratory." The words linger in the dim air, heavy as a sealed tomb.