Scenario 1
The Judgement Hall felt different in some sense as you, the player, proceeded down the hallway. The white columns that supported the hall's structure loomed above you as you passed them, and you briefly wondered if you'd find anyone waiting.

Sans was already dust after all, and with him gone you might be able to transverse this hall without incident for once.

Sans...That Comedian had apparently had a brief spark of courage, much to your dissatisfaction. He had attempted to save his brother, the idiotic Papyrus, from your malicious murder spree for once. Sans had failed, and you had found his despair amusing, although he quickly left your presence.

You hadn't expected him to attempt to stop you from continuing on to Waterfall, and that had been a...bad time. At that stage it had been hell to defeat Sans, but after nearly a thousand resets you finally managed to strike him down.

You'd kicked his 'treasured' blue jacket along with  Papyrus' scarf  out of your way, before kicking snow over both articles of clothing as a way to spite him. That had taken up way to much of your precious time..After that you continued on to kill everyone else in the Underground save for the King and Flowey the Flower.

That brought you to now.

It was at this point in time that you realized something quite unexpected.

Mages can reduce L.V, it seemed.

You'd reached L.V twenty shortly before reaching the Judgement Hall thanks to Sans' 'contribution', but now you found that you were just short of L.V twenty. You briefly regretted your decision to kill King Asgore and Flowey before erasing this world and beginning anew-because now someone new stood in your way.

Another thought crept into your mind as you took in the human, who was a mere teenager. Perhaps killing this 'mage' would bring back your lost EXP, as well as give you more. Perhaps you could somehow overcome L.V twenty and gain a greater power.

The thought excited you.

For the longest time there was nothing but silence between you, and it came to the point where you began to wonder if you would need to speak first. Her name suddenly came to you, as if it was some odd gift you were just now opening after years of ignoring it. You'd heard about this girl, but never personally encountered her. You'd also seen her before on a couple of routes.

Never killed her.

You'd never gotten the chance, but it only made you more excited now.

Sonya slowly straightened, and tilted her head back so that she could look up towards the ceiling. She was a tanned girl, with some height to her name. You faintly recalled that you associated music with her, for whatever reason.

She wore Papyrus' scarf around her left forearm. She's wrapped it around it for safekeeping. She also wore Sans' jacket around her waist..Sonya was merely keeping their keepsakes...safe. She briefly adjusted Sans' jacket with a dull look residing in her stormy grey-blue eyes. "I hope you weren't expecting a Judge." Sonya said as she fixed her gaze on you. There was a dark gleam to her eyes, and you didn't like it very much.

She slowly took off the skeleton's trademark accessories, and took the time to place them in what you could only guess to be some magical storage space. "I'm not fit to take Sans' place, but I believe that I can at least serve as a..stand in I suppose." Sonya stated tiredly.

She'd clearly been mourning. You wouldn't go easy on her even if she was emotionally or physically exhausted, you thought. "So...Let's get started then." She said.

It was as if the real scene was beginning, as an eerie feeling crept along your spine as she briefly lowered her gaze. You met it was she brought her eyes up only moments later.

She was serious. Very serious.

"It's a beautiful day outside. Birds are singing...and flowers...flowers are blooming. On days like these, kids like you, should be burning in hell."

She paused, and you allowed her to have her little dramatic moment. She wore such a sad smile-it made you happy somewhere.

"It's time you learned that actions have consequences, Y/N. It's only because of you that I'm standing here right now-because you killed Sans before it was time. You killed the Judge, and as his friend-as all of their friends..."

"I'll make sure that things go back to the way it should be. I'll kill you however many times I have to before you're forced to reset."

"........."

"Because...Because I'm the only one left that can grant them that mercy. Only I can be their justice now, and I will."

You smiled.

You spoke.

"Then let's dance, Sonya."

Scenario 2
You left a sickening trail of dust in your wake that spanned from the Ruins to New Home. Your head was filled with bone-chilling laughter as your Partner walked you down memory lane. The Judgement Hall was next, and this would be a time to remember, Chara had told you. The time where your dreams came true, because after the Judgement Hall you would meet the pathetic monster that was deemed the 'King of the Monsters'.

An underground breeze ruffled your hair, and sent an odd chill down your spine. Your stomach twisted with this odd feeling of...

You continued onward with a brooding sense of urgency. Soon the stone paths gave way to the tiled floors of the Judgement Hall, and you found yourself basking in it's intricate designs and columns. This would be a fine place to fight, you decided.

Sans fell before you, but instead of stumbling towards the other end of the hall with rubish claims of 'going to Grillby's', he turned to dust right before you. It was then that you noticed that you had an onlooker, and you presented them with a devilish smirk, which quickly fell.

This was not simply some monster that had escaped your massacre until now. They weren't even a monster-but rather a strikingly familiar person...

You realized that you had already killed this person, but they were somehow still standing at the very end of the Judgement Hall, in the doorway. Blocking your progression.

She was a young woman with a tall stature and a pale complexion. Her eyes were an unnatural shade of red, seeing as they were crimson. She had long and wavy white blond hair that fell to around her waist, and she wore such a bland array of colors. She appeared to favor whites and greys, as she wore a plain white shirt sleeved teeshirt beneath a washed out light grey jacket. She also wore light blue jeans and a pair of light grey converse. There was a metallic necklace around her neck, which was a plain slab of metal with 'A21RA' inscribed upon it.

Astraea Stoné

What an utterly pathetic name, for someone dressed in such an array of whites and grey. She was truly a slab of living stone.

You thought back to where you had first seen this washed out person, and you briefly recalled your journey through

REWRITING

There had been someone new with Goat Mom this time, by the name of Astraea if you recall correctly. She had been in Toriel's room or something when you had gone down to finish off the last of the Ruin Inhabitants. It was time for their Caretaker to join them~. You finished of Toriel just as Astraea arrived, and you could hear a choked sob emit from her as she witnessed Toriel turn to dust. A battle pursued, where you found that she was weaker than Toriel. Practically free EXP. You turned and walked off as you struck the finial blow. Watching her turn to dust would be a waste of time. Yet unbeknownst to you, she didn't turn to dust. Her soul possessed a small shard of DETERMINATION and she clung with all of her power to the living. A small pop sound met her ears, and a blurry figure stood before Astraea. She saw blue and white, before she remembered no more.

~Time Skip~

In the Judgement Hall stood Sans, yet you could sense another soul, which was rather odd. This soul possessed a larger amount of Determination than it should. Monsters shouldn't even have Determination!? The familiar figure of Astraea appeared from behind a pillar, a purple scarf like thing around her neck. Then you realized, she'd turned Toriel's robe into a scarf, at least part of it. "I killed you, how are you still alive?" You demanded.

"Sans saved my life, but that doesn't really matter does it? You'll be dead soon."

With those words you entered a fight. What's your move Partner?

Scenario 3
She's distracted you in Snowdin and allow the other monsters to evacuate. You'd arrived before that damn comedian could alert the others supposedly and she'd just had to screw it up. Then she retreated like a coward. Now you stood in Waterfall. Monster Kid hanging onto a ledge for his life. You'd gone over to push him off, when Undyne sprang, kicking you in the back. You'd gone sprawling forward while Undyne got the Kid up. Now you had to deal with Undyne and Thea. Great.

The strongest monster in the Royal Guard. And her third in Command. Fun.

Scenario 4
Make it up!