The Special Division 4, Quanxi and her fiends, and Tolka appeared in a mysterous grassy plain with lush green grass and beautiful flowers.

The things that weren't beautiful about it however, was the fact that everything around it was darkness and the sky was covered in hundreds of multi-colored doors.

During the transportation to Hell, the omnitrix was forced into timeout, transforming Humungousaur back to Ben.

"W...where are we...?" Denji asked in confusion.

"Hell." Kishibe stated bluntly.

Suddenly one of the multi-colored door opens, causing three bodies of astronauts cut in half falling from it and land in front of the group, the bodies' upper halves falling on the left and the lower halfes on the right.

A mirror appeared out of nowhere, causing everyone around the main group turn into pure darkness.

The mirror broke to pieces as a mysterious creature appeared out of it.

The creature's body was made up of many human bodies, with two bodies acting as his legs and four other human bodies acting as his torso, each having a unique face. Its head was akin to that of a pterodactyl with curved horns. The first human body had its arms stretching outwards holding what seems to be a cape of darkness.

The Darkness Devil...

has arrived.

Pingtsi, Long and Power shivered and even cried in fear upon seeing the creature appear.

Everyone looked at its appearance in shock and fear, and even Ben's eyes widened upon feeling how intimidating the Darkness Devil's sudden appearance was.

Feeling hostility coming from the devil, the fighters of the group got in a fighting stance while Ben prepared his left hand to hit the Omnitrix.

However, right when the teen hero was about to hit the Omnitrix's core, suddenly the Darkness Devil said an word in an otherwordly language that caused the hands of everyone present but Tolka's to get dismembered from their bodies.

Seeing that they would still try to attack it even in this state, The Darkness Devil said another unknown word which made everyone to fall to the ground and become immobilized.

The Darkness Devil started to stomp towards the Special Division 4 and Quanxi fiends, as everyone was immobilized, they had to think quickly or they all could be dead.

"Kobeni, try to take my mask off." Galgali suddenly spoke up, causing Kobeni to look at him in confusion.

"E...Ehh...?! W...what for...?" Kobeni asked in confusion.

"Just do it, Kobeni. Trust me on this!" The Violence Field exclaimed at Kobeni, causing the young woman to force herself and grab his mask off with her legs.

Once his mask was off, two aditional arms appeared out of Galgali's torso, as a pair of wings sprouted out of his backs. Galgali started laughing insanely as he launched himself in the air and attempted to attack the Darkness Devil.

The lovecraftian creature, however, said another unknown word, the Violence Fiend was pierced by a white light, killing him instantly. The white light hit Power, Long and Pingtsi as well but luckily they just gained minor wounds out of the blast.

Seeing this, everyone was shocked and enraged, through Ben and Denji instead gained determination in their eyes.

Denji managed to grab a hold of his cord with his mouth and, due to his blood loss from earlier, partially transformed into Chainsaw Man, with only his arms transforming into chainsaws while his head and legs remained normal.

Ben got close enough to his dismembered arms and managed to hit the Omnitrix with his head. In an flash of green light, in his place stood the electrical wire alien, Feedback.

The devil hybrid and the conductoid jumped in the air, landing atop the Darkness Devil's head. Denji started cutting its body while Feedback electrocuted it.

Denji managed to stab one of the creature's many faces, while the wire alien electrocuted its head multiple times.

The Darkness Devil shrieked in pain before it stabbed the chests of the two heroes with its claws before it spoke again, causing their bodies to get thrown into the ground and they fell down, unable to get up as blood started to form under them.

"LORD CHAINSAW DEVIL, NOO! YOU HURT LORD CHAINSAW!" Beam yelled in anger as he transformed into his giant shark form, only for the Darkness Devil to pierce him through his skull, killing him instanteously.

"Angel Devil, you heal Denji with your blood. I'll create a diversion." Aki stated as he managed to stand up with his katana held between his teeth.

Seeing that what the two attempted to do, The Darkness Devil stared intently at them, causing both of them to collapse ro the ground with them bleeding profusely from the inside.

"Tolka, take the Chainsaw Man's heart..."

Tolka heard the voice of his mistress in his head, and like the puppet he is, he listened to her, took out his knife and leisurely cut Denji's chest open and pulled out his heart, causing Denji to howl in pain.

Tolka walked towards the Darkness Devil and coldly stated: "This is the heart of the Chainsaw Devil. In exhange for it, The Doll Devil wants your power to defeat The Control Devil. Do we have a deal?"

The Darkness Devil nodded as he cut one of his hands off and sent it to the mortal world so Santa Claus could eat it and get more powerful.

As Tolka was preparing to give Denji's heart to the Darkness Devil, Prinz's body suddenly opened with a zipper as if she would be a costume as suddenly out of it emerged Makima with an cold expression on her face.

"Hmph...how pitiful...they all got defeated...Through Tennyson and Denji resisted longer than I anticipated...interesting..." Makima thought to herself as she walked by the defeated forms of Denji and Ben before she shot her finger gun at Tolka, killing him instantly.

Sensing that it is in danger, The Darkness Devil roared and attempted to kill Makima but she resisted the attack and pointed her finger gun at it, preparing to kill the being.

The Darkness Devil said another unknown word that made Makima's finger get broken but not before she managed to destroy two of the lovecraftian creature's arms, causing him to stumble backwards.

Feeling like it is in a grave danger with Makima in Hell, The Darkness Devil snapped his fingers, teleporting everyone present back into the mortal realms, straight in the place they last stood in.

Upon arriving back, those who were still standing remained in shock upon seeing what new terrifying form the Doll Devil now had.

Now that she ate the Darkness Devil's arm, Santa Claus's power doubled as did her appearance. Now she was three times bigger than before and her skin became red with giant bull-like horns coming out of the sides of her head.

"Maki...ma...! Prepare to be eliminated, Control De-!" Santa Claus roared as she attempted to attack Makima but she did so before her and she managed to break the Doll Devil's neck with her finger gun.

The Doll Devil seemed to have been exterminated by Makima's mysterious power, but soon enough, Santa Claus put her neck back how it was before she started laughing.

The Doll Devil stabbed Makima through the chest before she could do anything to fight back.

Makima was slightly shocked that this low level devil managed to get a hit on her, but she still didn't lost her composure.

"Heh...well, impressive, you had a lucky hit on me...but it won't happen again," Makima stated coldly as she prepared to finish Santa Claus off with her finger gun.

The Doll Devil, however, thought faster than her and cut her hand clean off, causing blood to start spraying from the wound.

Upon seeing Makima get hurt, something awakened in Ben and Denji that caused our two heroes to get up, ready to kick some ass.

Denji grabbed a hold of his heart's chord and pulled it, causing him to roar in pain and fully transform into the Chainsaw Man.

Ben, meanwhile, decided to fimish what he wanted to start earlier and slammed the omnitrix, causing him to transform into Humungousaur in an green light.

The two heroes let out a battle cry as they jumped in front of Santa Claus. Denji started cutting her body to bits and the vexasaurian crushing her body parts with his strenght.

More arms started sprouting out of the Doll Devil's torso, that jumled to grab and attack Denji and Humungousaur.

The brown dinosaur quickly dodged the attacks and smashed the two arms with brutal force, ripping them apart like twigs.

Chainsaw Man, on the other hand, cut all the arms in his way with his chainsaws until he reached her torso which he started to cut bit by bit.

"Ben! I need some help here!" Denji exclaimed as Humungousaur smirked and nodded.

"PREPARE FOR THE PAIN!" the vaxasaurian exclaimed loudly before he jumped up in the air before hitting the ground with his tail, causing revertebrations to happen that launched both Denji and Santa Claus on the air.

The chainsaw hybrid jumped up a bit before landing down the final hit onto the enemy's torso.

However, when his blades landed onto her body, they were rebound from her as if Santa Claus's body was made out of pure iron.

Santa Claus started to laugh as Denji and Humungousaur started to attempts and attack her but all was in vain as he body became indestructible.

While the two were busy with trying to defeat her, The Doll Devil sprouted six arms out of torso that all got launched towards the two heroes, causing them to get thrown into a bunch of buildings.

"Gah! It's no use! It's like she's made out of indestructible wood!" Denji exclaimed in annoyment while Humungousaur realised what he just said.

"Wait, Denji, could you repeat what you said earlier?" the vaxasaurian asked him.

"What? That she's made out of indestructible wood? But I don't understand how that would help us-" Chainsaw Man asked but was cut off mid-sentence when Humungousaur transformed into Heatblast in a flash of green light.

"Heatblast! Oh yeah, this is happening!" the pyronite exclaimed as Denji looked at him in confusion.

"Why Heatblast? I can't see how he could help us in this situation...?" the chainsaw hybrid asked the fire alien in sheer confusion.

"If her body is made out of wood, then fire should defeat her," Heatblast explained his plan. "You try to distract her so I can burn her to a crisp."

Denji smirked and nodded. "With pleasure," he said with a toothy grin as he ran towards the Doll Devil.

"Hmm...? You again? Didn't you see your efforts are futile?" Santa Claus asked as she launched all six of her arms towards Denji, which he managed to dodge and launched himself at her head.

Denji prepared his chainsaws to cut through the Doll Devil's skull but it only revertrebated towards him.

"Fufufuh...was that your only attack left?" The Doll Devil asked while she got ready to kill this fool, not knowing he still has some aces up his sleeve.

"No, it wasn't...BEN NOW!" Denji exclaimed with a smirk as Heatblast jumped up in the air behind Santa Claus's body before launching his flames at her, causing her to explode into into a fiery crescend of red.

Heatblast and Denji sighed in relief thinking that the Doll Devil has finally been defeated, however, that relief soon turned into shock and horror as Santa Claus's laughter was heard.

Upon turning around, our two heroes see the Doll Devil herself coming out of the flames with minor injuries as she started walking towards the two.

"N...no...way...h...how...?! I...I burned you to a crisp...I was sure I did...!" the pyrosapien exclaimed in shock upon seeing that devil walk towards him and Denji.

"Didn't I tell you your efforts were futile...? Now that I have consumed a part of the Darkness Devil itself...I am an unstoppable force." Santa Class laughed, mocking Heatblast for his fail.

However, as the Doll Devil started stomping towards the two, Cosmo suddenly appeared in her way, her heart-shaped pupils looking directly at her.

"Hallo..." Cosmo started to say, as Quanxi motioned everyone to cover their ears in order to not be Halloween-ified.

"Halloween...Halloween...HALLOWEEN..."

As Cosmo said those words, it was as if Santa Claus was in a trance. In the Doll Devil's mind, she saw Cosmo taking her to a metaphysical library.

Then, suddenly, it was as if all the knowledge in the universe got sent to the german devil hunter's brains, causing it to get distorted into only being able to say Halloween for all eeternity

Santa Claus started repeating the word "Halloween" over and over again as back in the real world, she remained paralysed and transformed back into human, stuck like that forever.

After that whole charade was over, Quanxi and her fiends broke the truce they temporarly had with Special Division 4 and jumped to attack Ben and Denji.

Upon seeing that, Makima gave a glare at the devil hunter and her fiend harem with her hypnotizing yellow eyes, that controlled them for a split second enough so they could be incapacitated by the Special Division 4.

While everyone else from the Division 4 went back home, Makima, Kishibe and another devil remained behind, as they have to imprison Quanxi and her fiends and bring them to justice.

However, that was what they thought was happening but Makima had other plans in mind, that being why she forced Kishibe and the devil hunter to get blindfolded, so they can't see what she was planning to do.

"Makima, why did you blindfold us?"

Kishibe asked, sounding both curious and horrified of what this woman could do to necessitate the blindfolds.

"The reason huh...? Well, we will take those criminals to a private government property that not even you should see it. It's for security reasons after all," Makima replied calmly, not really caring if Kishibe was suspicious or not.

"Then, what are you waiting for? Take us to prison, that's all you're going to do to us, right?" Quanxi asked eagerly.

"Hmm...curious...you seem oddly content with the situation, Quanxi..." Makima pointed out in a calculated way.

"Why shouldn't I be? It's not like we willbe imprisoned forever. Even if you manage to arrest us, we will either escape or be taken out eventually," Quanxi replied calmly, causing Makima's serious face to twist into a small smile.

"So that's what you think, isn't it? But...that's not what I plan on doing with you and your fiends, Quanxi, what I will do will be to..." Makima said in a condescending tone before she made her hand into a finger gun and pointed it at Quanxi and her harem.

"Well, this is...goodbye." Makima stated coldly as she shot her finger gun, causing the chinese devil hunter and her fiends to get their head cut clean off of their necks.

"What was that?" Kishihe asked in confusion upon hearing a-splash-sound coming from where Quanxi and her fiends once stood.

"Oh, nothing much, just that Quanxi and her fiends were assassinated by someone or something." Makima said as she cleaned the blood off of her face and looked at the two devil hunters with a twisted grin.

This revelation caused both devil hunters to remain mouth-agape in shock. The other devil hunter because he thought a sniper killed Quanxi and her harem while Kishibe was shocked because he knew that Makima was the culprit.

A few days after the incident, Kishibe called Ben to his office so they could talk about what threat Makima posed to them all.

"Allright, now that I'm here, what did you want to tell me about Makima? Do you know something that we don't?" Ben asked as he entered the hangar where Kishibe was located.

"Sssh! Close the door, I don't want you know who hearing us." Kishibe suddenly exclaimed but Ben shrugged anyways and closed the door.

"Allright, I closed the door but I fail to understand how Makima could hear us, it's not she can read out thought or something." Ben said not realising he was right.

"Actually, she can read our thought and even control minds," Kishibe replied, causing Ben's jaw to drop.

"Excuse me, but...WHAT?!" Ben asked in bewilderment. He did feel strange around Makima, he had to admit, but that didn't meant she had mind control powers or whatever.

"It happened to you too, didn't it?" Kishibe stated causing Ben to remember the incidents when he felt as if Makima controled him(A/N: Check back on chapter 3 and chapter 5 respectively for said events).

"Even if she did, how could she control minds? Makima is only human so it's not like she could-" the omnitrix wielder said but was cut off mid-sentence by Kishihe who replied with:

"Makima is, in fact, not human. She actually a powerful devil employed by the government, The Control Devil to be more exact," Kishibe said, causing Ben to look at him in shock.

"C...Could you please repeat that again? Because I thought I heard that Makima is a devil?" the teenage hero asked, hoping he just misheard what the devil hunter said.

"You heard correctly, Makima is The Control Devil." Kishibe replied causing Ben's face to look at him in shock.

"But even through she may or may not be a devil, what harm could she do? Isn't the japanese government keeping her in a leash agaisnt her doing anything?" Ben asked, regaining his composure as he wanted to know exactly what Makima could do.

"Even through the japanese government keeps Makima in check, she is too powerful and may rebel against us."

"How powerful is too powerful exactly?" the omnitrix bearer asked, hoping she wouldn't be as strong as the likes of Vilgax or Agreggor.

"To make a comparison, she is as powerful if not more powerful than devils like Dagon or the Gun Devil." the devil hunter division captain explained, causing Ben's eyes

If Makima is stronger than even Dagon, this meant the world was in big trouble. But what could her plan be?

"Stronger than Dagon?! Then that doesn't mean she could destroy the world with the flick of a finger?!" Ben asked in horror.

"That would be it, yes. But she won't destroy it. If she wanted to, she would've do it by now." Kishibe replied.

"Why? Why would she restrain herself from doing so? What could she gain?" the omnitrix bearer asked as he started to fumble around the room, nervously.

"I don't know what her reasons may be but...what she told you and the others was a lie. Katana Man, Reze, Santa Claus and Quanxi and her fiends weren't arrested or killed by devil hunters...the one who killed them all was none other than Makima." Kishibe explained, causing Ben's expression to darken.

"WHAT DID YOU JUST SAID?!" Ben yelled, suddenly snapping from his calm demeanor to a more agressive one.

"You heard what I just said. But I want you to remain calm and don't do anything brash. We are not sure what Makima wants yet." Kishibe stated.

"How can I remain calm?! Makima killed those people in cold blood...I don't care if they were criminals or not! Nobody should be killed without reason! What motive could she possibly have for doing something so heinous?!" Ben exclaimed, who, through still angry, he was a bit more calm than before.

"I told you I don't know. The only thing I know is that Makima is killing criminals and is trying to rebel against the government."

"Was this all you had to tell me...?" the teenage hero asked, sounding hollow.

"Yes. That would be all, you're free to go now." Kishibe replied as Ben grabbed his green jacket and put it back on his shoulders.

As he was preparing to walk out of the door, however, Kishibe taps him on the shoulder.

"Don't tell anyone else about what Makima truly is, allright?"

"Why?" the omnitrix bearer asked bluntly.

"Makima has ears and eyes everywhere and we don't know whose mind she has under control. We can't risk it, so for now, stay quiet and stay low."

The omnitrix bearer nodded and wenr out the door and back towards Aki's apartment.

Meanwhile, Makima was giggling as she was looked at some kind of object in front of her located on the desk.

It was a gun made out of black pieces stitched together. This was no ordinary gun however, it was...The Gun Devil's base form.

In the background of her office, on Makima's buletin board, there were photos of the Special Division 4 and other people like Reze and Quanxi on the wall.
For those Makima killed, there was a red text saying "TERMINATED" over their photos.

Meanwhile, for the Special Division 4, there were red 'x' marks covering their faces. Possibly them being Makima's next targets.

And in the middle of the buleting board, the photos Ben and Denji had red target marks drawn on them.

"Hmm...now thanks to what happened these past weeks, my plans are finally completed," Makima stated to herself in a cold manner. "The first two phases of this plan are over, so it's time to go to the last phase."

Makima got up from where she was standing and walked towards the buletin board where she touched the photos of Denji and Ben.
"Oh, Ben, Denji...I wonder how I may torture you...well, we will find out soon enough as the Final Act has started and the curtain is about to rise for the show," Makima said as she started giggling once again, a crazed smile on her face.

Soon those giggles of hers became a full blown maniacal fit of laughter that was heard into the night air of the city of Tokyo.

The following day, random cities across Japan were bombarded and completely anihilated by a mysterious force.

Cities like Osaka, Soparra and even Kyoto were destroyed in a blink of an eye overnight.

And it seemed that the cause of the attacks was none other than the Gun Devil, who was somehow revived and started attacking once more.
Its most likely next attack will occur in the Shibuya region of Tokyo.

The city of Tokyo was shook ever since the beginnings of a brand new day that many attribuited to powerful earthquackes hitting the capital.
Little did they know, however, that The Gun Devil was slowly but surely stomping towards their own destruction.

A giant figure with a gun coming out of its skull is seen stomping and walking slowly through the streets of Tokyo, bringing disaster where it went and a news helicopter was unfortunate enough to get closer to the behemoth in order to film it.

"As you can all see, the Gun Devil is slowly approaching our beautiful capital of Japan, Tokyo! We are the time near the Gun Devil's current location, presenting you all the situation live from News Channel Tokyo Everyday!" the news report, a young japanese woman, announced to the camera, failing to notice the fact that the behemoth devil noticed their presence.

The Gun Devil turned his head towards the news helicopter, and as if it was nothing, he shot his gun head at the flying vehicle, causing it to crash into the ground, exploding instantly and killing everyone inside in a fiery, infernal death.
As it continued its continous rampage, The Gun Devil's roar was heard, echoing throught the busy streets of Tokyo, announcing everyone of their impending doom.