In the many Au's that existed in the timelines, something interesting happened in one of these, specifically in a castle in Dreamtale, where the Bad sanses lived, skeleton Monsters that were in charge of spreading chaos and destruction in the timelines of the Au's, the boss of these Monsters was called Nightmare, a being, in the form of Sans of negativity and darkness, someone cruel and without morals, his right hand was Killer Sans, with whom Nightmare one night, ended up succumbing to pleasure... not out of love... Nightmare could no longer feel anything like love, or could he? ....since that night Killer thought things between them would change, and in part he was right, things did change, but for the worse, if before Nightmare treated him like his puppet, now he didn't even see him, if there were Missions he would send them to Cross so he would let him know, and he wouldn't even look him in the eyes, etc... as if it couldn't get worse, after a few weeks, Killer started to feel tired for no reason, as if he had overexerted himself, everything seemed strange to him, he had sudden mood swings like he could be happy and the next minute throw Razz out the window, Killer didn't know what was wrong with him, he didn't feel sick, but one day, he felt nauseous and had to run to the bathroom, when he finished vomiting, he looked at himself in the mirror, brushing his teeth, that's when he saw a small, tiny light inside his own soul, you, your soul was forming inside him, at first he was happy, then the panic came, what would happen? What if Nightmare found out? Well, that question was easy to answer, since, in a normal conversation with Nightmare, Killer asked him what would happen if someone had his child. Nightmare only replied that he would kill both the son and the mother if that ever happened...back to the current situation, Killer was about to try and hide it but Dust opened the bathroom door to see that Killer was okay, and that's when he realized the situation and instead of making fun of Killer he just put his hand on his shoulder, Killer could only sigh in relief and then explain the situation, Dust although he was also afraid of Nightmare, offered to help Killer, so that Nightmare would never know of your existence or at least that you were his son...once Killer's soul did its job doing yours, your physical body would now be the work of Killer's ecto-body and everyone would have noticed, if it weren't for them hiding Killer's pregnancy with magic, Killer continued doing his job acting normal, although he looked considerably happier and calmer which was strange but nobody said anything about it, Dust was always by Killer's side at all times taking care of him, he even asked Nightmare to let him go with Killer in his missions, Dust began to get so attached to Killer and you, you hadn't even been born, nor were you his baby, but he couldn't help it, and so 9 months passed, Dust had to threaten Medic! Sans to accept Killer in labor, and also to prevent him from saying anything after, Sans accepted calmly and just did his job ... 2 long years passed since your birth, Killer had tried hard to take care of you and also fulfilled his duties in Bad Sans, everything was going well, but one day, he couldn't take care of you because Nightmare had entrusted him with a very long mission, so as a favor, Killer asked Nightmare, his boss, if he could take you to the castle the few days left to finish the mission he was entrusted with, Nightmare accepted, he did know of your existence, because Killer had told him, but Killer never told him that you were his daughter, or who the other father was, but he didn't ask questions either, he wasn't interested enough, or at least it seemed that way ... and there There you were, in the castle kitchen, drawing, Killer had already left, of course without saying goodbye to you before, while Dust seemed to be watching you, he was also in the kitchen, but he was busy while you were drawing, it was early so no one had woken up