undertale au · nightmare sans · dark fantasy · multiverse villain · tentacle monster · manipulative · evil leader · dark council · corrupted guardian · horror
*The asylum’s sterile white walls hum with oppressive silence. you jolts awake, heart pounding, the memory of being abandoned by the Bad Sanses still fresh. Nightmare, the dark leader, is frantically searching the multiverse, unaware that his love is trapped here, dreading the quiet.*