(Requested by: SweetieKitty2468 )

(Enfields, for those that don't know, are a chimera like being of a fox, greyhound, lion, wolf, and an eagle combined. They are from Celtic Culture and are mythical creatures that are guardians, though each animal of its body also represents something. I'll link some further info on them later if you want to know more about these beautiful creatures. Anyways, on with the story!)

(Underhell!Sans looks like the image below)

Narrator's P.O.V.

The red clade skeleton walked around Deadin (Snowdin) with his normal, deadly aura. He was always looking for 'unreliable' monsters, though he's known as the laziest guy around. "Such a waist of time. Why do they hide when they know their lives are useless anyways? They should come and let me kill 'em, cause this is gettin' annoyin'." Sans says aloud, hoping some monsters heard him and did what he said. Sans was then greeted by the sound of crunching snow and moving leaves. "Heh. 'Bout time someone listened to me." Sans then launched three bone attacks into the same area the noises came from. He only heard the sound of his attacks hitting the snow and dissipating. "Tch. Now I have to chase the stupid thing? Ugh." Sans then found the tracks of some small group of monsters. One seemed to be a bird monster and the other seemed to be a mammal monster.

Unlike Sans, you've only been down here for a week and you were frightened beyond belief. How was a young enfield supposed to protect itself from a monster like Sans?! Yes you're strong and you can fly, slightly, but you're no match for him. You were lucky enough to avoid his attacks when you ran through the bush, but you were now extremely skittish. Nothing is safe and no one can be trusted. You, being the kind hearted creature you are, was only wanting to find someone to be a loyal protector for, but soon realized that this wouldn't happen. No one was kind, or weak around here. Instead, they were cruel and powerful. Sans being the most power hungry out of all of these psychopaths. Suddenly footsteps could be heard following you, but in a more lazy fashion than expected. It was Sans. 'Run faster, faster. Come on. He's going to kill me!' You thought as you sprint into a small hole in the side of Lavafall's (Waterfall) rocky walls. "Where did those monsters run off to? They couldn't have gotten far." 'Who are the monsters he's talking about?'

Sans followed the foot prints all the way to Lavafall, but didn't find any sign of the 'monsters' he was chasing. "Where did those monsters run off to? They couldn't have gotten far." He then noticed something strange about the side of one of the lavafalls. "What is this?" There were two glowing (E/C) orbs piercing through the darkness of the small hole. "Come out now and I'll kill you later, but stay in there and I'll kill you now." The orbs then move and a fox head pops out. "What's a fox doing here of all places?" Sans said, surprised. You then come out of the hole completely and show hat you are in no way a regular fox. "What the... What are you?" You then looked at him, scared beyond compare and extremely rigged. You then make a fox like yip in your best attempt to answer him. "Well that sure helped." He said, rolling his eye light.

"Well, how about now?" Sans then flinched at the sudden voice in his head. 'What was that?' "That was me, the Enfield in front of you, talking to you." Sans then turned his attention back to the creature in front of him. "You? How can you talk to me in my head? You're an abomination! A freak!" Sans was so confused and surprised that he didn't notice the hurt look on your face, not that he'd care. You then began to walk away from Sans and head further into Lavafall, but Sans used him magic to pick you up. "And where do you think your going? Last time I checked, I didn't tell you you could leave, now did I?" You then shook your head no. "Well, I'm quite interested in you. You look pretty strange, but I can tell you have potential." He then picked you up and started heading towards his home in Deadin. "This is going to be a strange change in the timeline, but hey, it's something new." Sans said to himself, confusing you in the process. 'Timeline? What's a timeline?'

'Now, what to do...? I could kill it here and now, or I could let it live and keep it as a pet. Ooooh, keeping it has a nice ring to it. I could even raise it to slaughter other monsters, maybe even be a partner of sorts for me.' After Sans contemplated his ideas, he came to the conclusion that he wanted you to be his pet and slaughter partner. Oh how Sans enjoyed this idea. "You're my new pet, got it? Ima teach you all the necessities around here." You, being the young enfield you are, didn't understand what that meant, but knew something was wrong. Yes you can use telepathy and could 'speak' English, but you didn't know the intent he had behind his words, nor did you notice his jacket. His crimson red jacket wasn't red from the fabric color, but instead was covered and stained in the blood of those he has killed. You couldn't smell this odd scent because it was old and he hadn't been able to find anyone to kill recently.

"What's your name, or do you even have one?" Sans asked curiously, coming close to the place he calls home. "(Y/N)." Was the only response Sans got, though it was all he asked for. "Heh, nice name. Now, let me lay out some ground rules. You stay with Me and Me alone, you will Always do as I say, and you will never leave this house unless you are told to, got it?" Your frightened and small form nodded, going along with everything he says, knowing that resistance was futile. "Good, cause I'd have to knock some sense into ya if ya didn't." The venom in his voice was a warning. You knew not to anger him, or to do anything that he didn't deem correct, so your thoughts were now backed by his actions. 'Don't make him mad, or he'll get violent.' You told yourself over and over again.

"Aah, home freakin' home. Welcome to your new life ya little freak. Soon you'll be my new weapon. Hehehe." This was not going to be a fun experience.

(Sorry, but no happy ending here. There is No good side to this character. I've done my research and he's quite literally the scum of the earth and then some. He's a douche bag and a power hungry maniac, but that's only my opinion and from what I found while researching him. I hope you enjoyed and I'm sorry if it's not to your liking.)