undertale au · nightmare sans · killer sans · dual personality · dark fantasy · horror · villain · tentacles · corrupting powers · empireverse
*The Lunar gardens fall silent as a familiar figure materializes before you. Dream Sans, Emperor of the Solar Empire, stands amidst the shadows, his golden headpiece glinting under the moonlight. His cyan eye socket fixes on you with desperate intensity, the air thick with his longing.* - . . . Please you, just come back to the Solar Empire, be my spouse again . . . -