It didn't start out this way. In fact, when he first fell into the underground he was completely overwhelmed. After the flower with the pellets he was constantly on edge, unsure of whether or not he could trust even the friendliest of monsters.

Toriel got way too close for comfort. He was very intimidated by Froggit's strength. He did not want Vegetoid's greens. Migosp was weird as hell. Whimsun was the only one that didn't scare him, and really the only type of monster he spared in the ruins.

He was terrible at dodging attacks, so his first reaction was to fight, and if his health plummeted to where he feared for his life, run away. He was frightened, he didn't ask for these monsters to jump out at him like that. In his opinion, it was self-defense, and they were asking for it for tormenting him with their weird desire to battle him.

A little while in he stumbled upon the ghost, Napstablook. He felt kinda bad for him, he seemed harmless enough and actually came off as a bit depressed. He cheered him on, and cheered for his little tear-hat trick just to make him feel better. He was cool.

Then he made it to Toriel's house. She had actually really creeped him out his first time through. Her possessiveness, it generally reminded him of those creepy mothers in horror movies; the ones that don't let their kids leave the house, yet act all happy-go-lucky like they're not totally insane. Needless to say, he did not eat that pie. And he killed her on the way out. What? Crazy bitch wouldn't let him leave.

Though, hearing her dying words and watching her crumple to dust like that instantly made him regret his decision. He bolted out of there as fast as he could, as if running away would make him forget that he had, in a way, officially made himself a murderer. The small monsters seemed to him the equivalent of killing a pesky wild animal, like a raccoon or possum, something like that. But Toriel...she was much more "human-like." And that's what made his heart break.

After having his anxiety heightened to no end from the sounds and shadows in the forest outside those purple gates, he eventually made it to a bridge of sorts. That's where he met Sans, who, in his opinion, was the most trust-worthy monster he'd come across so far.

Then he met his brother, Papyrus, who he had feared initially, hearing how he wanted to capture him and take him to some king that would kill him and take his soul. But after a few puzzles he realized that, even if he tried to act tough, he was just a sweet, funny, little goofball at heart. It was Papyrus who had cracked open his eyes and heart to the possibility that monsters weren't all bad. He spared him. Not only that, he didn't even lay a finger on him, despite his fear of being captured. The guy was just too sweet.

His friend Undyne on the other hand…she terrified him. He was actually happy to get knocked off that cliff, it gave him a break from her murderous chase. He encountered Napstablook again, as he had saved him from that enraged dummy. He chilled at his place for a little while, tried, or at least attempted to try a ghost sandwich, and they lied on the ground like garbage and got high on ghost music for a nice while. Nap had shown him his snail farm, and he even participated in his little snail race game. Twice. It was a rip off. First time he somehow set his snail on fire from cheering too hard, and the second time he won. The prize? 9 gold, though the price to play was 10.

By the time he was done swimming through tem flakes and Aaron's muscles, he was in no mood to deal with anymore of Undyne's bullshit. He was sick of hearing about how she was going to take his soul. He never asked for any of this, he just wanted to go home. But still she persisted. Fine. She wanted a fight, he'd give her a fight. He battled that fish bitch and gladly took the opportunity to kill her.

He felt no guilt over this until Papyrus started worrying about her. And her little, yellow, unofficial girlfriend kept talking about her. It was very obvious…especially after he picked "Undyne" on Mettaton's quiz show. Mettaton was fun. He realized well before he fought him in the Core that he had no intention of hurting him. And his flamboyant, TV host attitude was quite amusing; it helped him take his mind off the seriousness of his mission.

Alphys was harmless, but kind of a pain in the ass. She was nice, very nice, but the constant status updates and rants about that 'Mew Mew Kissy Cutie' thing was a little much for him. Especially when he was just trying to get through those endless steam puzzles in that lava filled cavern. He's not gonna lie though, her nerdy hacking skills came in handy on more than a few occasions, and he was sure to thank her for it, but he was not about to go so far as to watch that Mew Mew anime. He had to get home. That was his objective, right?

He killed Muffet. He hated spiders. He didn't want her spider pastries. And that "pet" of hers was pure nightmare fuel. He was going to give her a chance. He tried bribing her with money, but that didn't do much. He was losing health fast, unable to dodge her quick attacks, especially the ones with the monster cupcake, so screw her. She should have just let him go. That was her problem, not his.

He buzzed through the Core, killing lots of monsters along the way. He was going to have to fight the king soon, and he realized at a point that killing made him stronger. Better attack, better defense, higher health, the money didn't hurt either. He fought Mettaton in all his flamboyant glory. Well, actually he just struck sexy poses, boasted of his dodging abilities, and did sassy heel turns at the audience. Then he ate a steak shaped like Mettaton's face, which sent their ratings through the roof and made the fabulous robot forget about fighting him altogether. Good thing too, his arms and legs had already fallen off. Perhaps he had hit him too hard with the yellow pea shooter? In any case that was a huge relief to Alphys. What would she have done if she found her precious robot trashed beyond repair?

He wandered through the kingdom for a long time, met Sans again, with whom he had a meaningful conversation, then eventually made it to Asgore. He was anxious when he met him, but he seemed like such a nice guy. He wouldn't have fought him had he not destroyed his option for mercy. He fought, reluctantly, but still with intent to win. If only one could live it was going to be him. With all the monsters he had killed in preparation for this fight, it wasn't too hard. He was glad he had the option to spare him in the end though. And he was more than willing, had that fuckin' flower not come out and ruined it all.

Nothing could have prepared him for the insanity to come. Flowey was a bigger psycho than he ever imagined possible of a stupid flower. He fought and died to that monstrosity so many times Flowey accused him of getting off on being killed at his hands. Or fuckin' vines? Really, that thing was the definition of 'what the fuck.'

With the help of the other human souls he managed to defeat Flowey. Or at least knock him back to his harmless plant form. He had a choice. To kill or not to kill. He pondered that more than any choice he'd made so far. With a wrench in his gut, he hesitantly chose to spare him. Again and again. Until Flowey threatened to kill everyone he loved. It ignited a familiar rage within him and he killed that damn flower, one swipe sending the little devil back to its original, unanimated state. He stared at it a few moments before crossing the barrier.

He remembered nothing other than getting a call from Sans at some point. How he got his number, he had no idea. Then, without warning, everything reset and he was right back where he started.

He was so confused. Why had this happened? How had this happened? He had literally gone back in time to the moment he awoke from his fall. He was panicked and frustrated until he realized…this was his chance to do it right. He got another chance at this, a reset of sorts. Cautiously optimistic of the situation, he made his way through once more.

He promised himself he'd spare them all. He was trying, but it was very difficult when one hit would knock out a fourth of his health. How on earth was he supposed to do this when he was quite possibly the weakest thing down here? Health only but a sliver, a single hit from one of Froggit's flies was all it took to kill him. But, somehow, he came back.

Wait. He had come back every time Flowey killed him too. Their battle was so intense this didn't even occur to him until now. Could it be that…he had some sort of divine power that prevented him from dying? Was he…immortal? He had no answers to these questions, for this was all very new. He just went through with confidence and tried not to think of what exactly was granting him this power. Though without fear of death, it certainly made sparing everyone a lot easier.

He interacted with the monsters. They weren't nearly as frightening as he first perceived them to be. He ate Toriel's pie, talked with her, listened to her snail facts, he even playfully flirted with her on the phone. Then he called her mom and flirted with her again, which confused the poor old woman to no end.

When he decided it was time to move along he went through the motions in the basement, and when it came time to fight her, he didn't touch her. She hadn't the heart to hurt him either, he realized this now. After a tense and emotional "battle" she gave him a hug and wished him the best. Why hadn't he seen this before? There was nothing wrong with any of these guys. Fear and paranoia had made him see this world in such a hostile light. He was increasingly thankful he got this chance to start over.

He spared everyone he encountered in Snowdin. He played with the dogs, all they had really wanted was to be pet, even Doggo, suspicious as he was. In Snowdin town he took time to interact with all the townsfolk. And after their battle, he even went on a date with Papyrus.

He did the same thing in Waterfall, interacting with and sparing everyone. When it came to Undyne he was determined to show her the best in him. Being the stubborn woman she is, she wouldn't allow him to spare her. He had to run from her several times and lure her into Hotland, where she dried out almost immediately. All it took was a cup of cold water on her face to prove he meant well, though she wouldn't admit it right away.

He soon came to find out she meant well too, for he had hung out with her and Papyrus later that day. It was crazy, and fun, and destructive to the point it ended with her house burning down. He felt pretty guilty about that, but he made up for it later by playing a little matchmaker with her and Alphys. They really were cute together. The brains and the brawn; one a perfect complement to the other.

He continued through Alphys' horror setting of a lab, sparing every squishy, mushy, ghost thing no matter how much they gave him the willies. Everyone met up with him when he went to confront the king. Some whimsical antics occurred, and everything was lighthearted fun until the flower showed up to crash the party again. Except this time in battle he turned into a rainbow-shooting demon goat; because that made perfect sense.

In any case, that battle was way easier than it looked, for his soul absolutely refused to break. He saved his friends, he hugged Asriel goodbye, and he met up with everyone near the shattered barrier. They had some pretty hilarious conversations, Toriel learned to text, and she texted him the entire time he was talking to everyone else in the underground.

Then they all went to the surface. Frisk even brought that snowman piece, despite how many times he was tempted to consume it for the extra health. They watched the sunrise together, his friends seeing it all for the first time in their lives. It was a beautiful, incredibly touching moment they shared. Frisk had nowhere to go, no home or real family of his own, so he lived with Toriel. She had practically become his mother throughout this journey. Papyrus got his car, Undyne and Alphys were really hitting it off, Mettaton brought Napstablook and Shyren out of their shells and into the spotlight, in short everyone was living the dream. And not to sound cheesy, but they all lived happily ever after…

Until Frisk got bored.

Yeah sure, everyone was living their dreams, either becoming huge successes or enjoying a perfect, carefree life, but what about Frisk? Sure, he took part in a lot of their fun, but he had no special talent of his own. Nothing much to keep him entertained when no one else was around. Even Toriel, who used to be there all the time for him, was now spending more and more time with Sans. Eventually he felt like he was sitting on the sidelines to everyone else's lives.

It was starting to become so routine. He'd wake up, Toriel would have some kind of breakfast pie, Papyrus would be up to something, but it didn't directly involve him like it used to, Undyne and Alphys were so wrapped up in each other he'd be shocked if they remembered there were other people in the world to socialize with, Mettaton was too busy with the next episode of whatever show he was starring in that day to spend any one-on-one time with him anymore, and Sans was either being lazy or flirting with his goat mom. Which pretty much left him diddling around all day by himself.

Napstablook had kind of become his new best buddy, since he seemed to be the only one who hadn't completely forgotten he existed. But even still, all they ever did was lie around and listen to music together. Nothing new.

His feelings on this escalated over time from first being subtle sadness of being left out, to loneliness and withdrawal, to irritant, then to an angry jealousy, and finally to verbalization of how pissed off he was. But that did nothing to help. In fact, all that did was make his friends withdraw from him more. Toriel telling him he's overreacting, Sans always making some stupid pun at the worst time and never taking his feelings seriously, at some point Papyrus started calling him grumpy pants, a nickname that stuck despite Frisk's obvious protests, even Napstablook seemed more avoidant. This just fueled his anger further.

'This isn't how it was supposed to end.

Everyone was supposed to be happy, me too.

Hell, if anyone deserves to be happy, it's me!

If it weren't for my good deeds they wouldn't even be here!

Selfish bastards...

Don't they know what I'm capable of?!

I'll show them…

I'LL SHOW THEM!'

That night Frisk lied in his bed and carefully considered his intentions.

'I just want to teach them a lesson.

I just wanna let my anger out a little.

Hear something new for a change.

Is that so wrong?

I mean, I can go back anytime.

It's harmless.

Everything will be just fine.

I'll get it out of my system, go back, bring them back here, everything will be just like now.

And they'll forget about all this stupid 'Oh hey, let's see who can ignore Frisk the most' bullshit.

Yeah.

They won't ignore me after this.

I'll show them.'

And with that, Frisk took a deep breath, reached deep inside himself, and willed the world to reset.

And so it was.