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