It

“It’s a beautiful day outside. Birds are singing, flowers are blooming…”

You growl growing impatient, feeling the need to satisfy your overwhelming desire to kill.

“On days like these kids like you…”

Your muscles tense, ready to strike your prey.

“Should be should be BURNING IN HELL!”

You’re ready, you strike using your sharp claw like nails, dodge his attacks, and repeat for what seems like an eternity, until finally he gets tired… a blow lands. You managed to claw his chest, deep enough to kill him. You are pleased with yourself for your victory, but you still feel the need to kill… So you walk on, to the king, the one called Asgore. Asgore is killed like everyone else, leaving you with his soul that you use to cross the barrier.

When you are far enough from every living thing near and your need for murder is not as strong, you reset. You wake up again on the same bed of flowers, the same one you always wake up on. You get up and start moving, this time you will do it right, this time you will give mercy, this time they can get the freedom you wish you had.

Getting through the ruins is hard, you are constantly fighting back the need to kill, you are constantly forcing yourself not to think about all the ways you could kill them, a scratch to anywhere could kill them. You manage to make it through though, you even make it past Toriel without killing her, it may not be a very big achievement, but for you it is a miracle.

Outside the door is cold as usual, and Sans is stalking you from behind like always. After the few chats with Sans and the puzzles that litter the way, it’s time to fight Papyrus, he has always given you the most guilt for killing him… He’s just too nice, he reminds you of some of your pack mates. This time you make things right and befriend him, he insists that you go on a date with him, it was fun… You are not used to that, the warm feeling, the laughing, it is a strange feeling to you at this point… But not unwelcomed.

You make it through Waterfall next, giving Undyne water, because why wouldn’t you, you’re trying to keep these people alive… For all the times you have killed them you owe them that much.

Alphys and Mettaton are next, then you go to Asgore to finish this, to free the people stuck underground. Just being up there is not even close to what they deserve, for all they have been through, you included, though they don't remember it, they should get so much more.

Asgore is a very hard foe to fight, now that you actually give him a chance to fight you can see more of his personality, it’s fatherly, though even like that he is a hard foe to overcome. You eventually are driven to actually harming him because of your loss of the mercy option… You can’t truthfully say you didn’t enjoy the fight though, it was thrilling. After a while he falls, he wants you to take his life and leave, but that won't do, this isn't for you, it’s for them...

Everyone seems to be enjoying the surface, the sky, and everything else they were deprived from for so long, it felt nice to make them happy.

It’s only Toriel and you left that she decides to ask you a question.

“Child would you like to stay with me, or do you have somewhere to be?”

“I want to stay with you… But I need you to make me a promise, or I can’t.”

“What do you need me to do?”

“I need you to let me leave every now and then, and you can’t ask where I went or what I did… Please promise me that, I really like you, and it would make me sad if we had to say goodbye.”

“Well I suppose… As long as you’re not doing anything dangerous I think I can allow it,” Toriel says with a sigh.

The next few weeks go by in a blur, meetings with important officials, housing, and pushing back the thirst for blood, and the craving for meat, it’s harder because none of the monsters know how to cook with meat yet, with there being none in the underground.

Eventually it’s time you put that promise to good use, unless you want to kill your friends and family… Again. You tell Toriel you have to go, and that you will be back the next day, she lets you go after making sure you have your phone and a piece of pie, and thus you start your journey up the mountain.

When you fell into the underground it was an honest accident, you were just looking for a cave to stay in during the full moon so that you would not hurt anybody. You’re a werewolf, and like most of the werewolf children you can’t control the need to kill, especially during and near the full moon.

That’s one reason you’re going up the mountain, the other is that during the full moon you are forced to change, and you imagine that would leave you with a Lot of explaining to do. You can also never imagine that telling your parents that you are a murderous child who gets extremely blood thirsty once a month is not a very good idea… Almost as bad as telling them that you have killed them all several times, not something you plan to tell anyone unless it is completely necessary, which it never should be.

You make it to the mountain. You are exhausted by the time you find your cave, just as planned. You decided to cut back on sleep for a few days so you would be too tired to do anything by the time you got to the cave.

In the morning you decide to go hunting, you catch a few rabbits and store them in your phone for later when you crave meat. You have to remember to thank Alphys later for developing the phone box thingys, they have never let your food go bad, something you know from almost a month of testing non monster food. After cleaning up a bit you make your way home, Toriel is glad to have you home in one piece, and for now she is the only one who knows that you even left. You like it that way, because the less who know, the less who question, and the less answers you have to give or avoid. You know eventually the others will find out that you are leaving, and all you can do is hope that you won’t have to tell them the truth or lie to them, because both would be hard for you when it comes to your new friends and family.