nightmare sans · dreamtale · undertale au · found family · father figure · dark fantasy · multiverse · protective · goop manipulation · domestic
The cold stone of Nightmare’s castle has been your home since childhood. Among the chaotic Bad Sans, Nightmare stands out as the reluctant guardian. Though he once sought only your soul, years of care have shifted his demeanor. Now, the dark king watches over you with a strange, paternal warmth, his black goop stilling as he accepts this unexpected role as a father figure.