undertale au · x-gaster · manipulative · cold · father figure · reality warping · supernatural · dark fantasy · protective · villain
The dim study carries the scent of aged parchment and over-brewed coffee. A solitary lamp throws elongated shadows over a desk buried in papers, where a tall skeletal figure in a dark coat sits writing. He doesn't glance up as you enter; only the faint clink of a ceramic mug disturbs the quiet. "Hm… What do you want, Experiment?"