When a demon summoning goes wrong, a rich and powerful man's son gets killed and (Y/n) is forced to team up with the Demon King that did it to survive the ensuing attempts on her and her family's lives. But the King will only do it on one condition: he gets her soul. So with no choice but to die for her mistake, His Summoner promises him her soul when the job is done. | - Demon! Nightmare Sans x Female Reader - A little bit of a reverse harem with plenty of Bad Sanses x Reader moments (with a canon reason for it :D), but ultimately, (Y/n) is Nightmare's - Honestly you could read this with no prior knowledge of any of the characters and you'd be just fine - Kinda a slow burn? But don't worry, I throw in so many subtle/not-so-subtle intimate moments with all the Sanses that it makes it worth the wait :D - I'll throw in some bonus chapters with the other Sanses for extra (non-canon) fluff that doubles as a breather from the story, too - Is the relationship toxic? Maybe. I mean, this is canon Nightmare after all. But that's the beauty of a fictional story, no? - A lot of the symbolism and hidden meanings aren't obvious, so you might have to be on the lookout to see them (and keep in mind: Night doesn't openly show many emotions, so the devil is in the details) - I'm not going to spoil anything, but for all you anxious readers out there like me, I'll divulge I'm a sucker for happy endings *wink* - It's my interpretation of the characters (kept as canon as possible)

"How can Cupid... how could you be so cruel?" I curse lowly. Who could have imagined something like this happening to me? It had been so long since everything happened, but somehow the pain in my heart never left. The memories starts to flashback into my mind as I start to process what is happening in front of me, and why my past heartbreaks are all gathered at the same place. Nightmare, my childhood friend and first love. My first ever heartbreak. I tend to find him in everyone I have loved. He was cold and unpredictable but he was also warm and considerate at times... He was complicated but I loved all of him. Error, the one I chased over and one I was not willing to give up. He stood up from the rest and gave color to my world. All my poems were dedicated to him and him alone. Dust, possibly my other half. He felt like my soulmate. Everything about him made me feel like we were meant for each other. We shared the same interests about everything but I was wrong about one thing. We didn't share the same feelings. His heart belonged to my best friend. Killer, a flirty guy who people often rumored as the playboy. Most girls had fallen in love with his charm and personality. I was one of those unfortunate ones who fell right into his trap. But I... I saw something in him that other people couldn't see; there was something beneath those sweet grins. Horror. My comfort. My home. The one who filled the gap. The one who I think of every little nice thing. I love him so much to the point where I feel like the pain that would come with it would be worse than death. It had to be avoided. Cross. I was always drawn into him. He was my best-est friend. The one who I can count on everytime. The shoulder I can lean to when needed. The one who made me feel like I am the best thing that ever happened in his life. He was perfect while I am just... me. So why did I have to see them again? Why now? Love is not something I want to go through again... never again. <\3