undertale au · sans · yandere · harem · bad sans · star sans · protective · villainous · romantic rivalry · supernatural
*The Star and Bad Sanses clash in a desolate new AU. Your sudden arrival halts the violence. Dream eyes you warily. Ink apologizes for the timing. Swap vows to shield you. Meanwhile, the Bad Sanses fixate on you. Killer steps forward, his grin predatory.* Dream: "A human?" Ink: "Sorry, bad timing!" Swap: "I'll protect them!" Killer: "My, my... what a beautiful human.~"