[NOTE: This Undertale fan fiction will be a more traditional story involving various adventures the characters have on the surface. There are a few things that I want to make note of before I begin. First and foremost, both Frisk and Chara are portrayed in this story as male, like in most of my other stories. I'll update the story as much as I can without rushing it and every three chapters I'll have a short chapter devoted to Q&As so you could understand a little more about the characters and the world, provided that questions are provided. Enjoy!]
It was the final battle, the fate of the world rested in the hands of the human child Frisk. If he succeeded, monsters would once again occupy the surface and the world would be saved. If he failed, Asriel would take his soul and determination and become the planet's god, allowing him to do with the world whatever he saw fit. Frisk had been to this point many times before, he had succeeded every time, but his achievements were always nullified by a reset. A reset he had no control over.
Reset after reset, Frisk would watch every achievement he made crumble into nothingness and he would be forced to start all over again. He would have to reintroduce himself to his friends, he would have to save them all again, and the few who knew about his powers would blame him for each time the world was set back to the beginning, back to the moment Frisk fell into the Underground. This time however, Frisk was certain he would succeed.
"Hahaha! Come on Chara! Let's see you dodge this!" Asriel mocked as he lifted his giant, clawed hands in the air and launched a massive barrage of lasers from all angles. Frisk always hated it when Asriel mistook him for Chara, he knew little about the human other than the damage he had done to the Underground and the fact that he was once Asriel's friend, who he betrayed. As Asriel launched the beams of multi-colored light Frisk tried to dodge the attack, but several of the lasers grazed him and he started to bleed from his shoulder and side. Wincing in pain, the brown haired mestizo boy grasped his shoulder as red blood began to stain his blue and pink striped sweater and denim shorts. Asriel laughed at the sight.
"Golly! Looks like someone's getting sloppy! You'll have to try better than that if you hope to win Chara!" Asriel, the enormous goat-like demonic creature with iridescent wings said as he prepared for another volley of lasers to be launched at Frisk. Frisk stood ready to dodge again, but the lasers were faster this time. Frisk managed to weave his way around the attack and dodge each of the lasers until the last one struck him directly in the abdomen, knocking him to the ground and badly injuring him. Struggling to get back to his feet, Frisk noticed his sweater was torn and there was a large burn mark and bruise on his belly. Unable to continue fighting, Frisk collapsed to the ground once again. He tried to reach for his save file with his powers, but he was too weak and unable to reach it.
"Hahaha! I've got you now! Giving up already?" Asriel said as he flew towards the injured Frisk, who was unable to save his game. Frisk looked at Asriel and wiped some blood from his lip. Realizing that saving or loading the game was impossible, Frisk decided to use his remaining power to save the monsters Asriel had absorbed instead. Frisk had done this before in other timelines, but this time he had an idea. Frisk believed that this time he would be able to save Asriel as well and truly empty the Underground once and for all. Frisk slowly got to his feet, his knees shaking in weakness as he waited for Asriel to approach.
"Hey, just what are you planning?" Asriel asked suspiciously as he was about to try and finish Frisk with a blast of energy from his hand. Just as Asriel was about to land the finishing blow, Frisk's soul left his body and entered into Asriel's chest.
"Agh! What are you doing you little parasite!?" Asriel said angrily as he felt Frisk's soul intrude into his own, cobbled together soul. Frisk used his soul to reach within the depths of the clustered, stolen soul of Asriel to find his friends. The first of his friends to be found was Undyne, her face blurred and unidentifiable while she was armed with a magical spear and ready for battle. As soon as Undyne noticed Frisk standing in front of her in the darkness of Asriel's soul, Undyne charged at him with all her might, ready to strike.
"All human must die!" Undyne yelled as she launched her attack at Frisk, thrusting her magical spears at him by the dozens. Frisk was prepared though and knew how to avoid her attacks from the previous battles he had with her, and he knew how to bring her back to her senses.
"Hey Undyne, can you tell me that recipe for pizza that involves destroying an entire kitchen?" Frisk asked as he dodged a glowing spear. Laughing Frisk charged forward and began to grapple with Undyne.
"So you want to play rough huh? I'm not pushover Undyne!" Frisk said just before Undyne managed to grasp him in a headlock.
"I have you now you little punk!" Undyne said, but as she did her face returned to normal and she returned to her senses, having remembered who she really was. When she noticed she was inadvertently strangling Frisk, she let go and allowed him to catch his breath.
"Oops, sorry about that punk." Undyne said as the two laughed together.
"Well, some humans are OK, I guess." Undyne said with a wide, fang filled smile as she returned to her old self.
"Undyne!" Frisk said happily.
"Hey punk! How's it going? And where the heck are we?" Undyne asked as she looked around the endless black void, Frisk laughed.
"That's a long story. I need you to do me a HUGE favor though, and I promise I'll make it up to you... I need a little piece of your soul, one sixth to be exact." Frisk asked, firmly but nervously as his request was a pretty significant one. Undyne was taken back by this.
"Whoa! That's pretty serious stuff kid!" Undyne began, Frisk was worried that she would decline, but she continued. "Okay, fine. I don't know what you need it for but you wouldn't of asked if it wasn't important, right? And I swear if you lose it or break it I'll body slam you!"
With that, Frisk's soul was able to collect the one sixth of Undyne's soul as she broke off the piece of monster soul and handed it to Frisk.
"I have no idea how I'm able to do this, must be something to do with this weird dimension place we're in." Undyne said as she handed the piece of soul to Frisk, who took it in his hand, the white piece of monster soul shimmering.
"Thank you Undyne! Trust me, it'll be worth it!" Frisk said as he left to go search for the next monster he needed to save. As Frisk searched through the inky black void of Asriel's stolen soul he came across Alphys, who was dressed in her black polka dot dress she wore in the past when she and Frisk were on a pretend date. Wallowing in her self loathing, Alphys lamented that everyone hated her, that she needed to keep lying in order to go on. Frisk awoke her with quizzes on useless information, talking about her interests and favorite anime and with words of encouragement. After this, Alphys' soul was awakened once more with the knowledge that her friends loved her.
"Alphys, I'll need a bit of your soul to help a monster who's very important to me. Can you help me?" Frisk asked, Alphys happily but reluctantly obliged, giving Frisk another sixth of a monster soul.
"S-Sure! It'll grow back eventually as long as it isn't destroyed c-completely." Alphys said as Frisk absorbed the part of Alphys' soul. Meanwhile, Asriel was feeling himself beginning to lose power, and in panic he began grabbing his own soul in an attempt to force Frisk's soul out of him.
"Get out of there you little bastard! Stop, damn you, STOP!" Asriel yelled in desperation as he grasped at his own soul. Frisk continued his search through Asriel's soul, liberating the monsters who he had captured and in turn taking a piece of their soul, all of them complied. Asgore was reluctant, Toriel was confused as to what Frisk needed a piece of her soul for but trusted frisk none the less, and Papyrus happily gave his piece of soul away, not really thinking much about why Frisk needed it.
"NYEH-HEH-HEH! TAKE GOOD CARE OF IT HUMAN!" Papyrus said happily as the sixth of Papyrus' separated from him and landed in Frisk's hand where the other pieces were beginning to stick together, but had not yet become a functioning soul. After this, Frisk had looked over to the last monster, Sans the skeleton, who stood there lazily with a large frin on his face like usual.
"I guess you could now say you and kiddo here are... Soul brothers." Sans said to Papyrus with a wink, making Papyrus' eyes bulge with annoyance.
"SANS! THIS IS NOT THE TIME FOR LOUSY PUNS!" Papyrus complained, albeit with a smile, Sans simply laughed.
"Hey, don't get mad Papyrus. The kid's just doing a little 'soul searching', that's all." Sans joked once again, getting a loud, annoyed groan from Papyrus.
"THAT'S IT! I'M OUT OF HERE! NYEH!" Papyrus pouted as he stormed off in a huff.
"Don't stomp your feet Pap, you might wear out the 'souls' of your shoes!" Sans joked as Papyrus left, hearing him give one final groan in the distance. Once Papyrus was gone from sight and Sans and Frisk were alone in the black void, the short and stout skeleton closed his eyes and sighed, though still wearing his wide grin like he always does. With his hands in the pockets of his blue hoodie, Sans was silent for a moment before he spoke.
"Listen kid... I think I understand what's going on here..." Sans said. Frisk's head lowered apologetically before Sans continued to speak.
"I... suspected that flower boy might have been the prince once, having done my research and all... plus he and Asgore have that same way of speaking." Sans said frankly while Frisk stood and listened.
"I know you really care about that brat, even though he's made some pretty stupid decisions in the past. Quite frankly, I have nothing against him personally, he's not a 'bad seed', I just don't want him to do any more wierd or evil stuff... Though given everything he's been through, and having no soul, I wouldn't wish that on my worst enemy." Sans said as he drew out his soul from the pocket of his hoodie, holding it as he presented it to Frisk, who gasped.
"If you REALLY think this is gonna work, that you can fix him for good... Then I'll give you the last piece you need to make his new soul. There's just one thing I want you to promise." Sans said seriously before closing his eyes and sighing once more.
"No more resets, OK? If you bring that kid back just to take everything away from him again... Well, I'd never forgive you for it. So just don't do it, alright? No matter how nostalgic you feel your time down here." Sans asked, opening his eyes slowly once more, his voice serious but not angry or threatening. Frisk could tell from his tone that he was close to giving up and was giving him one last chance to prove himself as the hero everyone thinks he is. Frisk nodded in response and smiled to Sans.
"...I promise. But I'll need your help too. I'll tell you more once we get to the surface." Frisk said happily, even though he didn't have full control of his powers, he knew with Sans' help he could find a way to stop the resets from happening. Sans laughed.
"Great, no crossed fingers or winks either, I'll hold you to it kid. Now hold out your hand and I'll give you the 'soul' remaining piece you need to set things straight." Sans said. Frisk held his hand out and Sans gave him his, followed by a loud farting sound.
"Whoops! That was my whoopie cushion!" Sans said to the horrified Frisk, who thought Sans had changed his mind about giving his piece of soul. "Ah come on, don't give me that look, I just had to get you that one last time. For real now, here you go."
With the final piece of monster soul which Sans had provided him, the six pieces of soul melded together and began one. Frisk looked in awe at the white, upside down heart shaped object as it pulsed with energy and shimmered like polished moonstone. Frisk watched as the soul pulsed in his hands before he finally placed it inside of the heart locked he had found and equipped while in the Underground, the white glow radiating from the locket which now contained Asriel's new soul. With that, Frisk finally left Asriel's false soul and returned to his physical body, still damaged but standing up and preparing to free the Underground once more.
The thought of finally moving forward filled Frisk with Determination.