Tengu City, Near DEM Tower:

"I already reached half a million head counts! Try to keep up!" Dante celebrated while juggling demons by the air.
"How boastful! I already have hundred of millions demons shredded to pieces!" Vergil yells back as he hacked and sliced through the hordes of demons with immense speed.
"Pssshhh! I could do that in just a second!" Dante laughed.
"If you're motivated enough, but I doubt it!" Vergil gave him a smirk.
On top of DEM's building, Westcott glared as the sons of Sparda came to view and starts getting closer to the tower. He spreads his wings and roared out so loud that the earth shook.
Suddenly, the demonic samurai with multiple limbs and faces known as Ashura entered the battlefield. Despite its size, it sprinted towards Dante and Vergil like a mad elephant throwing the lesser demons like a ragdoll out of its way.
"Watch out for that big ass whatever is that thing is!" Dante yelled out.
Both brothers dashed upwards before the hulking demon got a chance to ram them. Dante grabbed his two pistols and rapidly shoots the Ashura. The demon then covered the face behind his head as its flesh stops the lethal projectiles from damaging it further. The face at the back roared at the demon hunter before blasting a powerful beam of hellfire which Dante quickly shielded himself with his sword. The lesser demons tried to attack Dante, however as they got a chance to pounce him, the heat from the hellfire turned them into flaming ashes.
Dante using his strength, he walk towards the demon despite the heat and force of the hellfire beam.
Dante growled as he got closer and the force pushing him back get stronger. His blade turned into a magma like color as the hellfire gets hotter. When Dante got closer, he use the power of the demon against its master and the Ashura went flying across the concrete street.
Fighting and butchering the Onis across the street is Vergil, he saw the Ashura flying towards him so he took this as an opportunity. His Yamato turned into a dark steel gauntlets and greaves imbued with the power of   one of the great demon he once killed with one blow. The older son of Sparda rolled up his right fist and cocked back his arm, taking a stance of ready to pummel the behemoth. He begins to charge his weapons with dark purple energy. Once the Ashura's flying body gets closer, he dashed towards it with unmeasurable speed and punched the spine of the helpless demon. The demon exploded into purple energy and instantly turned into ground meat from the force of Vergil's attack. The lesser demons around them went flying across all of the building caused by the purple shockwave.
"That was easy!" Dante chuckled.
Both brothers glanced around them and glared at the lesser demons that are already surrounding them getting ready to attack them once more.
"We can end this now with one blow if you want to?" Vergil smirked to his brother.
"Hehe. Why ruin the fun if we got plenty of time?" Dante ready his sword again.
He then pointed at the top of DEM's building where Westcott is standing who is glaring at them. "The awesome thing is, that asshole over there will never do anything as he got us where he wants us to be."
Suddenly, both brothers immediately evaded two figures who come at them like a missile. Both brothers covered their face from the powerful wind caused by the two mysterious figures.
Without any warnings, the two brothers got pierced by large spikes made of ice that appeared beneath them, making Dante and Vergil to coughed out blood.
Vergil sensed a familiar presence as the temperature around the atmosphere drops zero. In the mist of dust and cold fog, appeared the familiar girl he encountered at Tengu Park, Ellen, however her appearance changed. She resembled like the demon he fought at Tengu Park, the Yuki-onna.
"You?!" Vergil growled.
"Y-You know this chick?" Dante groaned.
Both brothers eyes went wide when they caught a glimpse of the shadow of the other figure sprouted wings. The figure lifted the giant fuel tank before flying sky high. The brothers knew what was coming as they heard a roar above them. Before they can get out of the spikes, the giant fuel truck crushed them, the figured added to the weight making sure both brothers are dead.
The fuel truck emitted an explosion that covered a wide ranged of the street, thus resulting destruction. The lesser demons also got caught in the intense heat from the massive explosion causing it to melt their skin off. Ellen immediately pierced the ground with her katana to build a thick ice wall to protect her from the searing heat and deadly shrapnel.
The figure rise out of the massive crater and giant flame. The figure looks like a walking silver titanium skeleton because of the armor that is covering her whole body and the red eyes craves blood, flesh, and death. After the assault the explosion hardly damaged the armor, completely protecting its host and even the wings are still intact.
The armor crawls out of her face revealing the young girl Artemisia.
"It is done." She said with her demonic voice.
The ice walls crumbles before her and Ellen said. "Let's return back to our master."
Before they could leave, two massive red and blue explosions went off in the fire and a loud terrorizing roar filled Tengu City. All the lesser demons cowardly retreated back to DEM's building while Ellen and Artemisia stood their ground.
In the fiery crater, two demons shoots through the sky and they spread their wings wide showing dominance over all of the demons.
Ellen and Artemisia roared out as they glared at the eyes of the sons of Sparda before going on with the attack. Artemisia summoned her great sword and and flap her bony leathery wings, leaving a crack on the concrete from where she's standing. Ellen screamed out loudly like a banshee as she summoned a powerful blizzard that covers all of Tengu City before disappearing in the cold mist.
When Artemisia got closer, her sword once again clashed with Dante. Loud clashing of steel echoed the cold air as the both of them going on with it. When Vergil was about to strike Artemisia, Ellen appeared above him to pummel him to the ground.
Vergil countered by grabbing her and using her as a landing cushion. Using his wings, he flew downward to plant Ellen on the ground, however she disappeared with the wind and Vergil crash landed on the solid highway floor fist first. The ice demon then went for another assault, Vergil quickly recovers and blocks Ellen's katana with his Yamato.
The Elder son of Sparda sensed Ellen is a lot more powerful than the Yuki-onna he fought in Tengu Park because of the mixed human and demon blood, and keep in mind both girls are former wizards which means they still have magic powers inside them that is boosting their demonic powers. When the two bloods combined, it will amped up the power of a demon.
"However, she is still predictable." Vergil told himself.
At the sky over Tengu City:
Kotori is sitting on the commander's chair while her brother is exploring the ship. Elliot, Karen, and Miku are all resting inside each of their rooms regaining their strength. Who knows what things they're gonna face as the creatures are unpredictable.
"Damn, Tengu City really got razed from the ground. It's a wasteland out there." Kotori mumbled to herself.
Kotori gasped when she suddenly saw a almost destroyed building encased in ice.
"Yoshino, I hope you're okay!" Kotori then hurriedly controlled the ship and bring it closer to the building to take a closer look.
She activated the ship's x-ray thermal vision and there she saw nine people inside the building with low body temperature, and three of them are already suffering hypothermia. Kotori pressed another button and outside the ship, four small golf sized drones got out from their holding deck. The drones entered at the top floor from where the others are. Before advancing deep in the building, the drones scanned the area if there is any danger, luckily the area is clear and it's all just scattered paperwork and destroyed computers got thrown around.
While scanning the area, one of the drones found a fire exit that leads to the stairways.
"Good! the others are just beneath this floor!" Kotori beamed when she got filled with hope for her friends.
She then grabbed the microphone by the commander chair and called out. "Shido, come here on the main deck quickly!"
Inside the abandoned building:
"W-What happened?" Tohka groggily talk. She tries to stand up, however the sharp pain on her whole body made her struggle. So she just sat there to calm the pain a little as she tries to look around the area despite her gloomy vision.
She then gasped and got surprised when someone's arms suddenly wraps around her like an octopus. After that, she heard a familiar soft voice sobbing.
"T-Tohka, I'm glad that you're okay!" Yoshino cried.
"Argh! My head!" The next one to sat up is Kaguya, both her hands holding her head.
"S-Same here. I don't feel so good." Yuzuru groaned.
Origami groaned as she is starting to gain conscious. She slowly sat up, trying to fight the headache and body pain she is experiencing like the others.
Her eyes scanned around the room and she notice sleeping besides her was Kurumi, Muruko, and Nia.
"Looks like they have it worse too." Origami sighed.
Suddenly, the ice wall that is blocking one of the door ways started to melt and they could hear a piercing noise behind it.
Yoshino and Natsumi ready themselves while the others trembled.
"They're here, get ready!" Natsumi cries out.
Once the ice wall has melted, four drones appeared making the girls calmed down.
"Guys it's you!" A familiar voice of a girl suddenly spoke in one of the drones making the others happily celebrate.
"Kotori! It's so good to hear your voice again!" Tohka beamed.
"Alright guys, I need you to prepare yourself I'm about to teleport you inside the ship. Get ready!" Kotori said.
All the girls got consumed by a yellow light before faded away in a bright flash.
Inside the ship:
In the middle of the commander's deck emitted a bright flash and after the light died down, it revealed nine girls. However, three of them are still unconscious.
All of them of the six girls screamed and yelled with joy and came running towards Kotori, Shido, and Miku. They shared some tight hugs and tears with each other, finally reuniting once again.
After the celebration is over, Kotori and Shido brought fresh clothes for the others while Elliot and Karen brought Kurumi, Mukuro, and Nia inside the medical deck to healed up and restore their powers.
"So Kotori, what do we do now?" Shido asked.
"We need to find Dante and Vergil, I'm sure they are fighting their way towards Westcott by now. They could use an extra hands." Kotori replied.
And she added. "For now, let's have a rest so we can use hundred percent of our powers. This is going to be a big battle... No... It'll be a war. We are in the end game now."