Love at first knife. A G!sans x werewolf reader.

After the monsters escaped from the underground, war breaks out immediately between the humans and monsters. Y/N a werewolf, and her little sister Frisk, hide from all humanity. When Y/n and Frisk are captured by a strange skeleton with one yellow eye, Y/n feels like she's going insane. The skeleton is starting to get more and more angry with Y/n because she's being more and more stubborn. Will she find a way to keep her wolf side in control around Frisk, or will Y/n kill herself doing so? Read to find out.