Sans than landed onto the white crunchy snowflakes of Snowdin. Thankfully, Sans is still okay from the fight, although he is rather frustrated at what had just happened. He had to fight against the false heroes that had just arrived to try and take him away from the others, and bring them to the headmasters of Union Academy. The nerve of those damn headmasters, after all that they have done to him. He clenched his fist, as he is getting incredibly enraged. But he immediately calmed down, as he does not want Eri to see him in a state such as this. Besides, he is about to give her a Candy Apple, which she needs.

He sits down on couch, trying to calm his nerves, before he got up, and began to make it. About 25 minutes later, while he is about to finish it...

"Sans...are you okay?"

Sans turns and looks down to see Atla, tugging him by the jacket. Sans nodded, and spoke out.

"I am...now. I had a run in with some people that I really hated today, one of whom was a friend that he betrayed me, and joined the ones that were hurting me for a very long time. Now, though, I am very alright. But thanks for asking, Atla."

He than continued to make the Candy Apple, and is almost done, until he felt a tug on his arm. Atla was tugging at him. Sans looked confused, as he lowered his arm to Atla.

Atla than grabbed Sans by the hand, and spoke out.

"Did you know that...because I am blind...that I am unable to cry? That I am unable to shed even a single tear when I become sad? Even if you die, not a single tear from my eyes will shed, even though...I want to for your sake, to show how much you mean the world to me".

Sans looks down, and sighed, as he actually had no knowledge that this was a thing for Atla. He should have seen this sooner. He than looks at Atla right at the face, directly, as he spoke out.

"Atla..."

He finished making the Candy Apple, and bends down a bit to Atla's eye level, before he spoke out.

"I made a promise that I would do anything I can to survive for the sake of the people that I care so deeply about. I will make sure that this is the case. I'll do what it takes in order to love for you sake, and nothing is going to prevent the promise from coming true, even as much as I hate to make promises themselves."

He than hugs Atla.

"So don't worry, Atla. I will try all that I can to live for everyone's sake. To live...for your sake."

Atla didn't make much of an expression, except for a smile, as she hugs Sans tightly, almost like she is afraid of letting him go, like he is about to to be killed at any moment by someone that could come out and attack him. He than looks at Atla, who than kissed Sans in the nose. Sans smiled, as he than took out the Candy Apple, but not before kissing Atla's forehead, making her blush a little.

"Hey, Eri. I made the Candy Apple for you. You're coming?"

"I'm coming, big brother!!!"

The next day...

Sans is now in Union Academy with a bunch of his friends, Velvet, Coco, Akame, Bols, Atla, Mine, and Yang. Apparently, Sans had heard that there was a very, very immense battle that every single hero from Union, minus the people that are dead, are facing off against. So Sans decided to see what it is that is going on so that he can deal with it, because if you're someone that can take on Union, than clearly it is trouble.

"So, where is it?"

Yang spoke out, as Sans spoke back.

"Well, that's what we all want to know."

Akame looks around and glared a little bit.

"It is repulsive to be back in this city, especially after al Union Academy has done."

Bols nodded in agreement, due to the fact that Union attempted to kidnap his daughter once, and he had to fight along with Night Raid to save her. Velvet's ears than picked up something. Fighting.

"I...I think I hear it."

Atla looks at Velvet, as Coco Adel spoke out

"Where?"

Velvet points at the direction of where the sound is coming from, as Mine smiled with killing intent, as she spoke out.

"Than let's go and take it down."

Everyone nodded, as they than ran toward there the sound  was coming from. But as they kept on running, Sans, with his own enhanced hearing, actually began to hear it as well. Than, Atla began to hear too.

The others moved to where this is happening, and they are not happy with what they are seeing.

"A-Are you kidding me?! The Trihexa of all things?!"

Mine shouted out, as she looked in horror and shock at what she is seeing before her eyes right now. Coco pushed her sunglasses closer to her face, as she spoke out.

"Well, that is certainly not good.

Sans looked up in immense shock. Why was the Trihexa out? The Trihexa is said to have been sealed away! However, he also noticed that there were people fighting it. It was the heroes of Union Academy, even the Gremory Peerage, who had tried to take him away. Clearly, he is not happy with what he is seeing before him.

Rias fires her Power of Destruction at the Trihexa, but she it did was annoy it, as it began to regenerate the part it had lost from the Gremory's attack. It than breathed out fire from one of its heads, and Rias had to get back. But the fire breath made an explosion, which knocked her back. Akeno tried to use Holy Lightning and strike at the Trihexa, but even that barely did anything to stop it.

Xenovia tried to use Druandal to try and make a strike at Trihexa, due to Durandal's power to cut through anything and everything. But the problem is that the Trihexa's flesh does not stay down. The Trihexa than swiped with one of its limbs, causing massive damage to Xenovia knocking her out and incapacitating her.

Sun Wukong, the Faunus, uses his Semblance, Via Sun, to try and distract it long enough for someone else to make their move at it, which wound hopefully incapacitate Trihexa, although they are unable to kill it, as they are not at the level of Trihexa.

Glynda Goodwitch used her Semblance, Telekinesis, to compact some metal rubble into a drill and fire it at the Trihexa.

This did some damage, but it did not really hurt Trihexa that much. In fact, the best thing that she did was enraged it even more so than she did before. She barely had enough time to dodge Trihexa's attack.

James Ironwood, using the Cannon form of Due Process, fires the power green energy at Trihexa. This did stop it, but only for a few seconds. After that, the wounds just closed up once again. Needless to say, James Ironwood is not very happy that this upgrade for Due Process is not working very well for him. James Ironwood immediately moved out of the way, as Trihexa breathed fire at him, barely getting away from it without injury.

All-Might, using his other form, tries to use his power of One for All, in hopes that it can incapacitate it for a little bit. But the Trihexa thought of him as annoying, and simply flung him back like he is an annoying bug that needed to be swatted away. Endeavor tried to use his Hellfire at it. But this did nothing to it. In fact, it seemed amused. Bakugou and Shoto did a team attack on the Trihexa, but it did not even scratch it.

Issei simply activated his Balance Breaker, as he than spoke out.

"Face off against me, Trihexa, I'm the strongest of this place. Fight me!!"

He boosted his power very fast, as Trihexa breathed Fire on him, before Issei launched a punch, and did a very powerful Dragon Shot at the Trihexa, in hopes that it would counter against the flame breath. Unfortunately, though, it did very little, and ended up getting hurt by the flame breath. However, that does not mean that the Red Dragon Emperor is going to give up in the fight against the Trihexa, who is still attacking against Union City.

Sans looked extremely disgusted and enraged that the Trihexa is this powerful. Not to mention that these so-called heroes are ending up making themselves look embarrassing and terrible at their job. He shook his head, as he spoke out.

"What type of training do they bring to their students?"

Sans than walk towards the fight, as Velvet spoke out.

"Sans? What are you doing?"

Sans turned around and spoke out.

"I'm gonna fight it. That's what."

Mine than spoke out to Sans.

"Are you crazy?! You go in the fight and you'll die!"

Sans than spoke back.

"I won't die from this. And besides...I have an idea. But I am going to need all of you to help me in this."

Everyone looked at each other, before Akame spoke out.

"What do we do for you, Sans?"

Sans turns around to Akame, and spoke out.

"When you hear a voice telling you to come, than that will be your sign to come in and help. I'll call 2 or 3 of you, but that's it."

Sans than ran to the fight, as the crashing gets closer and closer than before, he than looked and saw the Trihexa, as some of its heads split to make some more body parts. This made Sans incredibly disgusted at the large demonic entity that is causing havoc all over the entire place. How it is unsealed, he will never know. What he does know, is that he needs to do whatever it takes to stop this.

Sans than fired a Gaster Abyss Blaster at the Trihexa, making it stop, and turn towards where Sans is at. This caught everyone by surprise, as they were not expecting for Sans to appear out of nowhere like that.

"Hey!! What are you doing here, weakling?!"

Rias shouted out, in which Sans responds by firing an Abyss Shard at Rias, and stabbing it near one of her fingers, shutting her up and having Sans look at the Trihexa. Clearly, everyone was not expecting for Sans to appear in all of the stuff that had been happening. So why is he here now?

"Mr. Gaster. I'm surprise that you came back."

Ozpin spoke out, with Sans glaring and spoke out.

"Well, I hoped to never be back after what you Union sickos have done to me. I'm only back to defeat this thing. I am not here so I can come back to you false heroes."

Glynda, who is present with a sad look now present on her face, spoke out to Sans Gaster.

"Mr. Gaster, please..."

But Sans spoke back.

"Don't 'please' me, Goodwitch, after all the unfair stuff you have done to me. You and all the others make me sick, just by the sight of you. All of you. When I defeat the Trihexa, I am out of here, and do not even attempt to follow me after all the unfair stuff that you have done to me."

Sans sighed, as he calmed down, before walking forward, and preparing to face it himself, when suddenly...the Trihexa began to attack with its arms, forcing Sans to jump  back, and realized that he is going to need some help right now. So, he called the first 3 people that can be if any help towards him.

Mine came out from her hiding spot, and immediately used Pumpkin, as she shot at the Trihexa, and due to the fact that the Trihexa attempted to use one of its more powerful attacks on Mine, Pumpkin's firepower increased immensely, causing incredible damage towards the Trihexa's body, though it had still regenerated from damage. Coco joins in with Gianduja, as she shot bullets that are amplified by her Semblance, Hype, in order to try and slow down the Trihexa. Velvet even is using a copy of Floating Array to try and do as much damage as possible in order to slow it down.

Than, she made a copy of Crescent Rose, and began to attack the Trihexa with the weapon, and began to do as much damage as she could to the Trihexa, before the weapon finally gets used up. Than, both Yang and Atla came out of nowhere, as they struck Trihexa back with all of their might. But thus only pushed it back and didn't really hurt the beast of the Apocalpyse that much.

Than, Akame came out, and is ready to do her part in fighting against the Trihexa.

"Akame..."

Akame looked and saw Ozpin, and her eyes glared a bit at Ozpin, who looks a bit worried by the glare that she is giving off.

"You have a lot of nerve to call my name, Ozpin, after nearly trying to take my Teigu from me and attacking my friends, also trying to take theirs. The sight of you makes me want to kill you for what you have tried to do to both me and Night Raid. I am only going to fight it because I do not want it to destroy Remnant. And that is all."

Akame than looks at Trihexa, which than roars for battle, and needless to say, Akame is not scared at the slightest. In fact, she is going to do whatever it takes to put an end to the Trihexa's dreaded reign of destitution, torment, and terror. As soon as the Trihexa spotted Akame, it than roared and made an attack on Akame, who leaps out of the way to try and hit Trihexa. But the thing is, Trihexa has a level of defense that would make trying to go up against it a little bit difficult, as she has to avoid getting burned by the fire breath, avoid it's strikes that could kill her, and be weary of the regenerative properties of its body.

She was able to avoid its limbs that are trying to crush her, but than, she is forced to slow down a little bit, as she noticed one of the heads that is getting ready to do something to her. And it looks like it is aiming at her direction, or the area of land that she's about to go to. Than, one of the heads belched out a fireball, and it was aiming to the area that Akame is running to. Thankfully, though. Akame noticed the fireball's direction, and is ready to stop herself at the right exact time.

Akame was nearly hit by a fireball from Trihexa, but thankfully, it missed, and now, Akame turns her attention to the very gigantic diabolical beast. She rushes forward with Murasame, and made a very deep and large cut at it's side. As soon as the cut has been made at it's side, the poison from the Teigu, Murasame, starts to spread from the cut, but it than slowed down, before it than stopped, as the Trihexa's regenerative powers are doing everything that it can to stop the spread of the poison inside of the Teigu.

But luckily, it will have to also focus its regeneration on someone else. Bols came out of complete nowhere, and aimed Rubicante at Trihexa. The flames that are attacking Trihexa are said to burn until there is nothing left of the victim. And the Trihexa is said to have a form of regeneration that can allow it to heal from anything. So, when there is a bunch of fire burning, the Trihexa's regeneration is doing all that it can to help its body and preventing it from being burned to ashes. Because of the Poison of Murasame and the Flames of Rubicante, it is now weakening its regeneration, just in time for Sans to make his part count.

"What do you think you are doing, weakling?!"

Issei shouted out, before a Crystal Shard made a cut in his cheek, silencing him.

When Sans began to walk closer to it, the Trihexa exposed its core to Sans, as a humanoid figure is seen floating inside of it. The core...it senses Sans' power. It was similar to Ophis and Great Red, and yet, it is so different. Way too different, in fact. It is unlike anything it has ever seen in its life. In fact, the Trihexa could sense it. His Turquoise power, it is strong, and the state it is in now, the power it is in now, it is now as strong as the Trihexa, and close to the power of both Ophis and Great Red.

[There should be a GIF or video here. Update the app now to see it.]

(Sans' Image Song)

Sans Smiled, as he lifts his right hand to show...he has a Ring Teigu, named Black Marlin, on his finger. Formerly toned by Liver, who was an enemy and former ally of Night Raid's deceased member, Sans decides to take Black Marlin, due to the his affiliation with Water itself.

Sans clenched his fist, as the gem on Black Marlin glinted, with Sans ready to use its power on Trihexa. Normally...he'd be in an ocean. But he does not need to. Water Molecules are everywhere in the air around him. And while he cannot use the Teigu to the max like that, he can at least use it to hold the Trihexa in place. He just needs some time to concentrate on its power in order to bend the molecules enough to make water. And besides...there is only one places that he can think of, where he can use water to its incredible amount, and only he is capable of accessing this place, as no one else could. And he does not want to open a portal to this place, because than, Union is going to utilize it for their own purposes, and this is something that Sans would prefer to avoid.

Sans stepped forward towards the Trihexa, who notices Sans walking towards him. It than roared out, and attempte to step on Sans. But Sans dodged out of the way, as it made a powerful crack on the ground, as well as a powerful shockwave. Sans than looks up, and fired a Gaster Abyss Blaster at its face...or at least, one of its heads.

This destoryed the head, but this also enraged, as it regenerated a new head. Thankfully, though, Sans had been focusing on Black Marlin's power ever since before the fight, and because of this, is ready to take him on. He than fired a rain of Abyss Shards, as he the monster roared in agony, while Sans ran forward, and unleashed a power Gaster Abyss Blaster combined, and fired it at Trihexa, who than used its fire breath to try and counter it. This time, the Gaster Abyss Blasters and the Fire Breath are evenly matched, as they tried to overpower each other. But Sans than fired a barrage of Abyss Chains at Trihexa, and the cuts actually had a notice full effect. For every cut made, the regeneration is temporarily negated, letting the Poison run its course, before stopping. Looks like the purifying properties of the Abyss Chain has an effect after all. He than slammed in onto the ground, and began to fire a barrage of attacks, before the Trihexa roared out and attempted grabbing Sans before consuming him, so that this problem would not have to be dealt with anymore. But Sans now readies Black Marlin's aquatic abilities.

Sans than used Black Marlin to hold Trihexa in place, before he used his Gravity Manipulation to fling it up in the air. Sans than followed suit, as he spread his wings, and take flight, as he than launched every attack that he had at the creature of the Apocalypse. He launched the Abyss Shards, he fired the Gaster Abyss Blasters at their maximum power and numbers, he even fired the Mini Blasters. But these are not enough to put down the Trihexa, due to it being more powerful enough to take on the Abyss Powers, even when it is weakened by both the poison of Murasame and the flames of Rubicante, which it had dealt with. Sans than realized...that there is one more trick that he had not tried yet.

"This will take a lot out of me by manifesting it. Just hope that it is with it trying to take down the Beast of the Apocalypse itself. Besides..."

Sans lowers his hand, and an Abyss Chain is formed from beneath his hand, and his eyes narrowed as he stares down at the Trihexa, who'w now trying everything it can to try and eat him.

Sans than raised his hand into the air, and the Abyss Chain hovers over his fingertips. But the Abyss Chain also began to grow in size, as he focused his magic on the chain itself. It keeps on growing and growing, until it is big enough to make some very serious damage to the Trihexa. While this is putting a strain on his body for using his magic like this, he does not care about that? And has what he needs to bring the Trihexa down. He than swung his arm, almost like he is punching something, and the gigantic Abyss Chain went down also, firing at the core, and piercing the Trihexa, like hot knife through butter.

As the Abyss Chain has the power to destroy anything related to evil or anything demonic, it serves as the final move against Trihexa. As the Abyss Chain's power takes effect, not only did it negate it's healing ability, but the poison and the fire from the Teigus, Murasame and Rubicante, spread, although the poison spread far more faster than ever, and killed the Trihexa, before the fire could consume the Trihexa's body. This gave Murasame a massive power up when it's trump card is ready to be used, and the Trihexa's body exploded inside flash of white light, and everyone closed their eyes, before they looked and saw the body of the Trihexa, gone. But Sans floated down from the sky, and landed on the ground safely. Although, Sans immediately went down to the ground, his right knee and left hand touching the ground, with his right arm onto the leg. Sans is panting, as the move that he had done to the Trihexa took a lot out of Sans. But he slowly stood up, and spoke out.

"Did...did we win?"

Everyone looks, and saw that, there is now sign of the Trihexa. Akame was the one that spoke the answer

"Yes. We did."

She than looked at Murasame, before speaking out.

"Let's go back, everyone."

Sans nodded, and they turned around and walk away. But as they did.

"Hey, weakling!!"

Sans turned, and saw a fist nearly come towards him. Sans pulls out a cube, turns it into a wall, and pushes it, which made spikes. The fist hits the spine, and well...the result is obvious as to who the fist belongs to. The fist ended up belonging to none other than Issei himself.

"Aahhhahahahaggg!!!"

Issei cried out in pain, as he held his hand, which had been pierced by the spikes of the Crystal wall that Sans had made. He goes on his knees as he held his hand in agony.

"Big mistake."

"Issei!! How dare you!!!"

Rias screeched out, as she attempts to use her Power of Destruction on Sans. But suddenly...

"That is enough, Rias!!!"

Sirezechs shouted, as Rias turned around, and spoke back.

"But Sans pierced Issei's hand!!!"

But than, Sirzechs fired back.

"Only because he tried to attack Sans first. Besides...me and the headmasters want to talk to him, not kill him!! So stop with that, right now!!!"

Rias couldn't fight back against her brother's words, and forced her hand down. But not before getting slammed by Issei, who Sans had thrown with his Gravity Magic, that he can still use. Looks like even when weakened, his third evolution allows Sans to use his powers, which his second evolution did not allow him to do. So why did it allow him now when back at that temple, it wouldn't allow him to. Maybe it is because he had now grown powerful enough at her time. Sans doesn't know.

Sans turns around, and sees the Headmasters, including James Ironwood and Glynda Goodwitch together with them, and teleported in front of the Headmasters, and spoke out.

"You better make this quick. I do not have all day, fools."

Ozpin sighed, before speaking out to Sans.

"First of all, I know that you won't accept it, but it still would like to thank you for helping us against the Trihexa."

Sans spoke back.

"I only did it so my home does not whet destroyed. I didn't fight it to help you."

Ozpin nodded, and took his turn to speak out.

"Secondly...we...I am very sure you are well aware of what we had been dealing with. Involving with Salem and All for One, and which his why...we need your strength."

Sans raised an eyebrow, as James Ironwood continued with what Nezu left off at.

"We had seen what you can do, your magic, the crystals, and even the magic called Evolution...it is what we need to stop Salem and those that allied with her."

Sirzechs is the last one to finish it off.

So please come back...we'll treat you better."

Everyone looked, hoping that Sans would come back. But Sans is not easily convinced. He looks up, and clenched his fist, as the ground beneath him cracked, catching everyone by surprised, as Sans than spoke out.

"This...this is the reason why I decided to tear down the academy and leave. You fake heroes only care about power and using me as a tool, not to mention using your power for fame and glory. But as I have learned, heroes are not supposed to do that. They are supposed to be actually concern for the lives of others, even their own kind, and treat people like they are people, not just some powerless wimps to kick around and hurt and very powerful people that they can be used as tools and instruments of destruction. And more importantly, they are supposed to risk their own lives about stuff, because they give a damn about people, and not simply to boast at how powerful they are at an enemy that they are facing, so that they can be famous at what they have done to the enemy that they were fighting. But you know what else?"

Sans teleports back 2 feet away, so that his glare can be fully shown.

"I am an independent being, you messed up false idols. I am a person that can decide to do what he want, and I refuse to become nothing more than a pawn and a punching back that you can hurt. No. I will not, nor will I ever become that. So tough luck getting me on your side, you fools. But that will not work on me. It won't work anymore."

Sirzechs than spoke back.

"But Sans...that was what we used to be. Now, we've changed, we're different."

But Sans spoke back.

"Your lies do not fool me. I won't let you trick me anymore, just as you have done to me. No, you will not every trick me. It will not be like last time. Besides..."

Sans he then began to turn around, and spoke out.

"I have got something far more important to do than waste my breath, with the false heroes of Union.

Sans than turned around and began to walk away, but than, he feels someone running up to him, and suddenly, grabbing his hand. He looks to see who it is, and to his anger, it is Glynda Goodwitch, who grabbed his hand.

Sans than began tug his hand away, in order to free himself from Glynda's grasp.

"Let go of me, Goodwitch."

He spoke out, as he tries to pull his hand away from Glynda, who refuses to let go.

"Sans, I've changed. Please, don't leave."

Sans snarled, as he than spoke out.

"I..said..."

He snapped his fingers, and all 6 Gaster Abyss Blasters came up, and began to charge up.

"Let...me...go."

Glynda was horrified at what she is seeing, as Sans is ready to use it on her, and it now dawned on Glynda, that, Sans originally had respect for her, and held her in high regard. Strict, yes, but fair, as Sans wanted it to be. But to see Sans act like this to her, it made it clear that he not only let Sans down by joining in with the other students that hurt and victimized him, she also disappointed Sans by his unfair she acted towards him, and now, he wants nothing to do with her. So, after a minute, she lets go, and Sans goes to his group, before opening a portal on the ground. Everyone else jumps through, but not before Sans gives out one last look towards Glynda, the one look of hurt and disbelief, before jumping into the portal himself, away from the students of Union.

"Incredible...he manage to beat the Trihexa. I thought that only I and Great Red can fight and defeat the Trihexa."

Ophis than puts her fingers on her chin, as he had a thoughtful expression present on her face, as he spoke out.

"Maybe his power is what I need...after all...it is unreal to even most gods themselves. So maybe...just maybe...I can reclaim my home...or...he could he belong to me."

Ophis than turned into a puff of smoke, as she retreats somewhere else to think of a plan. But unbeknownst to her, there was another person that is watching as well. And this one...has plans of her own.

Koneko's older sister, Kuroka, watched Sans, interested, as he goes into the portal. But what Sans didn't know, was that Kuroka made a powerful tracking spell on Sans' jacket in order to go to wherever it is that Sans is going to. That way, she can find and locate Sand anywhere.

"Interesting. His magic, it never stops increasing. Maybe this is what I need...for my species that is dying."

She than stepped backwards into the portal, and vanished, as she portal closed up in front of Kuroka, who is waiting to do her next move on the one called Sans.