Yuto drops off Ellen with Mavis as he then and went to get Oda and Yakumo. Zeo showed up and drop off Glass, Naofumi, Raphtalia, Filo, Hajime, Yue, Shea, Tio, Kaori, Shizuku, Seiya, Rimuru, Ragna, and Veldora to help Yuto out. Zeo had also dropped off Miyu with Mavis to play with Ellen. Oda, Yakumo, Glass, Naofumi, Raphtalia, Filo, Rimuru, Ranga, and Veldora were going to go with Luna to help her save her father while Hajime, Yue, Shea, Tio, Kaori, Shizuku, and Seiya were going with Yuto and Kurumi to help him save Luna's sister.
Yuto's group arrives at the front of the fortress where Luna's sister Diana was.
"Are you guys ready for this?" Yuto asks them and upon seeing their determined faces he knew they were ready.
"Zero-One Henshin Tron~" Yuto sings.
Yuto was surrounded by numerous sky-blue colored orbs. A big orb and a small orb went zooming to his head. The big orb collided with the back of his head while the small orb collided with his face that wasn't covered by his visor. The big orb became helmet of Megaman X, and the small orb became a Gundam-faceplate that covered the rest of his face. 5 more orbs 1 bigger than the orb that became the helmet and 4 small orbs a bit bigger than the one that the one that became the faceplate. The big one collided with his torso while the 4 small ones collided with his limbs forming the Kamen Rider ZeroZero-One's form minus the Forceriser with the yellow changed to sky blue and the Tekkadan symbol in sky blue on a black shield on the chest where the heart is. Another 3 orbs one orb the same size as the first orb and 2 small orbs collided with his chest and feet respectively. The chest and shoulder plates of Kamen Rider Zero-One's Shining Assault Hopper form on it and the 2 small orbs became the Rocket-Skates of Shadow the Hedgehog with the red replaced with sky blue. Then one big red orb the size of a person came in front of Yuto and became Yuto's Red Phantom Dragon Sword that then stabs into the ground. Yuto places his hand on the handle and lifts it up and starts swinging it like a master swordsman. Then six red orbs hit Yuto's back and became holsters. Another five red orbs became the Red Hollow Dragon Sword, Red Twin Dragon Fang Swords, Red Twin Dragon Claw Swords and went into the holsters completing the transformation.
"Let's go." Zero-One said as they move towards the fortress but as they took a step forwards thousands of orcs came out.
"That's a lot of orcs." Seiya said.
"Then I think it's time for some real firepower! Zero-One Ichavial Tron~" Zero-One sings,
Zero-One's armor colors change with the blue changing to red, the black change to white, and the visor's lens changed to pink. A pair two red, white, and pink orbs appear and combines with Zero-One's gauntlets becoming a pair of Gatling Guns with shields on top of them materialize as he fires them with red laser bullets coming out of the twenty-four barrels. A big orb with the same colors as the orbs from before becoming a machine that looks like the O-Raiser with the blue change to red and a pair of cannons on top that can move around in half of the 360ยบ field and blasts any target. Zero-One jumps on top of it as it zooms around and fires its cannon as small Bits detaches from the wings and strikes around in the air. and fire lasers The Bits reattaches to the wings as Zero-One jumps off as the Machine boosts its speed and attaches to Zero-One's back as the cannons extends to above his shoulders as he fires them. The cannons go back to their original positions as eighteen orbs with the same colors as the pervious orbs with two becoming a pair of handguns like Ichavial's guns from XV with longer and bigger blades. Zero-One grabs them and spins them around before he fires six shots each from both guns emptying them out. He then opens their chambers up and threw them up as the remaining twelve orbs became bullets and enters the guns chambers as Zero-One catches the guns by their handles and then close the chambers up as he did one final spin.
"Bang!" Zero-One Ichavial said pointing his guns forward signaling the complete of the transformation of the form.
"Man, it feels good to use this form again." Zero-One Ichavial said as the music starts playing.
(Play CROSS by J-CROWN&TaKu.)
Modoseru kako nara nani ga chigatta
(If the past can be turned back, something's different)
Zero-One Ichavial detaches his Gatling Guns, and they attaches onto Seiya's arms while his Hope Raiser (the O-Raiser lookalike) detaches from him and goes to Hajime who jumps on top of it.
Senaka wo awaseta risou to gisei
(Ideals and sacrifices, going back-to-back)
Seiya starts using the Gatling Guns to blast the Orcs while Hajime provides some air support by blasting the Orcs from above.
Iki wo hisomeru kono sekai de
(Holding my breath in this world...)
"Hey guys, how's your health plan?" Hajime asks the Orcs as they charges at them.
Are you ready to burst?
"APPARENTLY, IT'S GREAT!" Hajime said with a savage smile as they proceed to massacre the orcs.
Blaze up, fight as one! (GO!)
"Fire Style: Fox Tail Inferno Jutsu!" Kurumi calls out as she creates nine tails made out of fire and uses them to incinerate some Orcs.
Tadashisa nante (GO!) hagaranai dakara
(Righteousness can't be measured)
Tio in her dragon form breathes fire onto the orcs which incinerates them as well.
Semegiau sorezore no omoi
(Our feelings, clashing with each other)
"HI-YAAAHHH!" Shea screams as she uses her hammer to crush and pulverizes the orcs.
Kono mune kizande (GO! GO!)
(Engraving us from within)
Shizuku was slicing up any orcs that got near her and Kaori.
Again looking up, shine! (GO!)
"Wind Blades!" Yue calls out sending out a barrage of blades made out of wind at the orcs bisecting them.
Ima hashiridasu (GO!)
(Running forth without a thought)
Zero-One Ichavial was blasting and slashing the orcs killing several as his bullets pieces through them and going through other orcs.
Shoudou no mama ni
(Even in times of hesitation)
One orc tries to attack Zero-One Ichavial from behind.
Fugainaku nageku iradachi ni madou toki ga kitemo
(Toward that cowardly lamentable irritation)
But unfortunately for the orc Zero-One Ichavial spin kicks its head off.
Owaranai asu no sora shinijte
(Believe in the future's never-ending sky)
"Man there are a lot of these bastards." Hajime said as he quickly reloads his weapons.
Tomo ni mukae yo
(Approaching it together)
Hajime was right. There is a lot of orcs.
Let's Cross in the New World
The group had killed a few hundreds of orcs by now, but more was still coming.
Narifuri kamawazu egaita mirai
(The future that I drew without pretending)
'Hajime is right. There are a lot. How are there this many orcs?' Zero-One Ichavial thinks to himself as he kills some more orcs.
Soshiranu kao shita atarashi keshiki
(A new landscape with an unknown face)
Zero-One Ichavial could tell these orcs were enhanced in some way.
kioku tokedasu kono sekai de
(In this world that melts memories...)
'Wait a minute. Daito is it possible they somehow made clones of orcs?' Zero-One Ichavial asks his partner.
Are you ready to burst?
'Possibly.' Daito answers as Zero-One Ichavial smashes another orc with one of his legs.
Blaze up, fight as one! (GO!)
'How do you think they did it?' Zero-One Ichavial asks as he did a new trick.
Mada kasoku suru (GO!) genkai tobikoe
(Accelerate and fly past your limits once more)
He combines both guns to create a rifle (like how Jack in S.P.D. combines with blasters with the blade of the second gun moving up so the blades are side by side) and starts firing more shots that completely destroys the heads of several orcs with one shot.
Mazariau kako mo shinjitsu mo
(Mixing the past and the truth)
'Maybe magic or a machine? A combination of both perhaps?' Daito said as Zero-One Ichavial uses his gun blades to cut some orcs apart.
Kono mune idaite (GO! GO!)
(Embracing it from within)
'Could be.' Zero-One Ichavial said deploying some Chakra Chains which pierces through several orcs and have them on the chains like some macabre kabob.
Again looking up, shine! (GO!)
Ima ugokidasu (GO!) osoreru koto naku
(We're heading through without the need of fear)
He then throws them off the chains.
Hotobashiru atsui jounetsu ga moetsuki tatoshitemo
(Even if your surging passion burns out)
'Hey, you know that song Its Raining Men?' Zero-One Ichavial asks Daito.
Tomaranai hayaru kodou kanjite
(Feel the unstoppable high-spirited beat)
'Yeah?'Daito said.
Tomo ni mukae yo
(Approaching it together)
Let's Cross in the New World
'Well instead of men it's raining orcs!' Zero-One Ichavial jokes as the corpses that were on the Chakra Chains fell and lands on some of the Orcs crushing them a bit.
Mune no doko ka fukaku tsunagi tomeru you ni toikakeru koe
(A voice asking you to hold it in your chest somewhere deep)
'Yuto that was a terrible pun.' Daito deadpans.
Tatoe mukau saki ni donna unmei ga matteite mo
(No matter what fate awaits you ahead)
'I'm not sorry about it.' Zero-One Ichavial said as he notices something.
Make wa shinai komeru ketsui kasoku shite ku
(I don't want to lose, I want to put it in)
'Looks like they're starting to thin out quite a bit.' Zero-One Ichavial said
I am so ready to burst
Suddenly a massive wave of demonic power comes from the fortress and covers the remaining orcs and the orc corpses.
Saa ima Wake up! Wake up! Blazing up!
(Now Wake up! Wake up! Blazing up!)
The orcs were pulled into five different piles.
Blaze up, fight as one! (GO!)
"What's going on?" Hajime questions having a bad feeling about this.
Tadashisa nante (GO!) hagaranai dakara
(Righteousness can't be measured)
He fires at one of the piles but there was a barrier protecting them.
Semegiau sorezore no omoi
(Our feelings, clashing with each other)
The piles quickly form into five giant zombie orcs!
Kono mune kizande (GO! GO!)
(Engraving us from within)
"Summoning Jutsu!" Zero-One Ichavial quickly summons Kaze who saw the situation and quickly attacks.
Again looking up, shine! (GO!)
"Shadow Clone Jutsu!" Kaze calls out creating several Shadow Clones.
Ima hashiridasu (GO!)
(Running forth without a thought)
"Scorch Style: Emerald Phoenix Jutsu!" Kaze and his Clones covers themself in emerald flames and shoots themselves at the giant zombie orcs.
Shoudou no mama ni
(Even in times of hesitation)
The giant zombie orcs try to hit Kaze and his Clones.
Fugainaku nageku iradachi ni madou toki ga kitemo
(Toward that cowardly lamentable irritation)
But unfortunately for them Kaze and his Clones were too fast for them.
Owaranai asu no sora shinijte
(Believe in the future's never-ending sky)
Kaze and his Clones blow through the giant zombie orcs.
Tomo ni mukae yo
(Approaching it together)
The holes Kaze and his Clones made in the giant zombie orcs were on fire and quickly spreads through their bodies.
Let's Cross in the New World
The giant zombie orcs turn to ash.
"Thanks for the help, Kaze." Zero One Ichacial said to Kaze.
"No problem kid. So, mid telling me what's going on?" Kaze asks.
"Long story short a sister of a new acquaintance I met is being experimented here, so I came here with Kurumi and some others to rescue her while Oda, Yakumo, Luna the new acquaintance I met, and some others went to rescue Luna's dad. Ellen is with Mavis, Sarasa, and Saya in Mavis' world." Zero One Ichacial explains.
"I see." Kaze said with a frown,
"Do you think you can stay here for a while longer just in case?" Zero One Ichacial asks.
"Sure. Be careful in there." Kaze warns him.
"I will and thanks." Zero One Ichacial said as he and the others enters the Fortress as the Hope Raiser, and the Gatling Guns returns to him. As they enter the fortress Zero One Ichacial saw an old enemy he made back in Saya's world.
"Menma!" Zero-One Ichavial exclaims seeing Menma wearing new clothes and he has a sword now (Sword of Dark Destruction from Yu-Gi-Oh). His new clothes were a dark red t-shirt, a leather vest with golden studs, silver spiked metal arm bands, a pair of black leather pants, and a pair of black heavy duty combat boots.
"You have a lot of nerve, showing your face here!" Zero-One Ichavial said angrily remembering that this bastard almost killed his family.
"It's been a while, Yuto. By the way. I have gotten more powerful than the last time you saw me." Menma brags as he transforms into a bulked up like Venom from Marvel humanoid for demon with razor sharp teeth, claws, long tongue (again Venom), a pair of demon wings, black furred fox ears, red silted eyes, nine black furred tails, and finally a second pair of arms.
"What the hell!?" Hajime exclaims as everyone there was shocked.
"You like it? Sid converted me into a demon and in the process the Nine Tails inside of me became one with me." Menma gloats.
"Bastard! You're working with him!" Zero-One Ichavial said angrily. "Is this really the kind of power you wanted?"
"Yes, but you know what? I don't care!" Menma said.
"What?!" Zero-One Ichavial exclaims in shock.
"I'm fine with being a beast, I neither want nor need anything to protect. I just want to destroy everything, until the beast stops whining." Menma said smiling evilly.
"You're insane." Seiya said what was on everyone's mind.
"I don't care if you bastards think I'm insane. By the way Yuto." Menma said catching Zero-One Ichavial's attention.
"What?" Zero-One questions.
"My new 'friends' told me that you are a future king. The so-called King of Hope. If that's the case you can call me the King of Despair for wherever there is hope, there is most definitely despair." Menma said with sadistic glee.
"Why are you so determined to spread hate throughout the entire world!?" Zero-One Ichavial questions Menma in anger.
"Because I can." Menma said simply while having a massive evil grin on his face.
"You bastard!" Zero-One Ichavial said in anger. He realizes he is going have to use that form to beat him.
'I don't have a choice. I got to defeat him or else everyone is going to get hurt!' Zero-One Ichavial thinks to himself as he could feel Memna's new power, so Yuto prepares to use a form. One he thought he never had to use.
"Zero-One Falldown Tron~" Zero-One Ichavial darkly sings as he reverts back to his base form.
Zero-One's sky-blue coloring changes to silver and the lens of his visor turns into an ominous red color. His swords disappear as two large black orbs appears and touches Zero-One's arms, and they change into BlackWarGreymon's Dramon Destroyers. Then two more large black orbs this time appears and goes to his back. They then turn into the wings of Kamen Rider Holy Live but black in color.
"Who... Who are... My Enemies...? My enemies are the ones after my life... My enemies are the ones that are after my life and the ones that toy with my life... They're all my enemies." Zero-One Falldown Mode said before he loses control.
"Aaaahhhhhhhhhhh!" Zero-One Falldown Mode roars as an aura of evil darkness coats him.
"No! What is Yuto thinking!?" Kurumi shouts in worry as she can feel herself growing angry from Yuto using the form.
Menma screams and charges at Zero-One Falldown Mode, delivering a few punches and a kick until Zero-Falldown Mode grabs his arms and twists them behind him, causing Menma to scream in pain.
The screen freezes and turns black-and-white with a slow zoom-in as a Western narrator speaks
"And that's when Menma realized that when you grab a bull by the horns..." The Narrator said.
Cut back as Menma continues screaming. Zero-One Falldown Mode lifts Menma over his head and
"...sometimes, he'll take you for a ride." The Narrator said as Zero-One Falldown Mode throws him onto his knee, nearly breaking his spine in half as he screams some more before Zero-One Falldown Mode grabs Menma again and throws him through several walls. Zero-One Falldown Mode was walking towards Menma before stopping and summoning the Legendary Sword. He then grabs several feathers and place them on the Sword causing it to absorb them causing the Sword to gain a new form.
The Sword now looks like a curved black feathered wing called the Falldown Wing Sword which grants him 250 ATK at the cost of lowing his defense like crazy.
"Tailed Beast Ball!" Menma shouts firing a Tailed Beast Ball at Zero-One Falldown Mode who quickly puts a dark colored Rho Aias that blocks it but six of the petals were destroyed causing injuries to Zero-One Falldown Mode. Zero-One Falldown Mode was quickly covered in a stronger aura of evil darkness that heals his wounds rapidly as another pair of wings comes out of his back.
"Grand Cross!" Zero-One Falldown Mode calls out as he fires ten super-heated spheres of light arranged in a cruciform syzygy at Menma. Menma tries to dodge but he was quickly caught by Zero-One Falldown Mode's Chakra Chains.
"What!?" Menma said in shock before he was hit by Zero-One Falldown Mode's attack causing an explosion.
"Damn that hurt!" Memna said as he grits his teeth in pain as the smoke clears revealing scorch marks on his body.
"I think that's enough." A male voice said as a skeleton with long white hair, a crown, armor, and wields a long axe (Leoric from Diablo).
"Leoric what you are doing here?" Menma questions with a glare.
"I'm here to get you out of here. You're not yet ready enough to take on him in that form." Leoric answers.
"So, are you saying that I'm too weak!?" Menma demands angerly.
"You have barely spent enough time in your demon form to gain a true feel of it and your new powers. Now let's go." Leoric said before Zero-One Falldown Mode charges at them before Leoric grabs Menma and dodges Zero-One Falldown Mode's attack and slashes one of the lenses off of Zero-One Falldown Mode's helmet. Leoric grabs the lens and teleports himself and Memna away.
"Aaaahhhhhhhhhhh!" Zero-One Falldown Mode roars as dark sparks appear on his body before his form disappears as Yuto kneels painfully on the ground.
"Yuto!" Kurumi yells out in worry as she rushes to his side.
"Are you ok?! What were you thinking using that form?!" Kurumi yells at him.
"He was being truthfully. I could tell Menma was stronger than before, and we had used up some energy fighting against those orcs. I had to use that form or else." Yuto answers.
"You have a point." Kurumi said.
"Daito are you ok?" Yuto asks his partner as his hologram shows up.
"Yeah. Luckily father made sure I won't be effected by that form too much but since that Leoric guy sliced one of the lenses off we can't use Zero-One until we get it fixed." Daito said.
"Let's take a breather for a few minutes." Hajime said.
"No, I'm good." Yuto said as he stands up wincing a bit.
"Let's find Diana and then get out of here." Yuto said as he takes off the visor and puts it away for now.
(A few minutes later)
After dispatching a few soldiers and using Shadow Clones they found the location of Diana.
"Are you Diana?" Yuto asks seeing a girl with pale gray colored hair and purple-colored eyes wearing a raggy white dress in a cell.
"Yes, who are you?" Diana asks with a little blush.
"I'm Yuto Emiya an acquaintance of your sister." Yuto said before her eyes lit up in anger.
"That traitor sent you!?" Diana yells in anger.
"She went to save your father with some help from some friends of mine while I come here to get you out of here with some of my other friends." Yuto answers.
"Look how about we get you out of here and into proper clothes and then you can have a family reunion?" Yuto asks.
"Fine." Diana said. Yuto traces the bars and makes a key. He unlocks the cell. Diana tries to get up but almost falls to the ground causing Yuto to quickly catch her before she falls.
"Are you ok?" Yuto asks in concern causing her blush to come back a bit stronger from the feel of his muscles and the concern in his voice.
"The last round of experiments was a bit stronger than before." She answers.
"That's not good." Yuto said getting more concerned.
"Everyone grab on to me." Yuto said causing the group to grab onto him before he uses the Hiraishin to take them back to the village.
(Back at the Village)
They arrived quickly where Yuto picks Diana up in a bridal carry causing her blush to grow even stronger as he carries her into a hut as Kaori follows him and places her down on a bed.
"I got her. You should go see if the others need any help." Kaori said.
"Thank you, Kaori." Yuto said as he walks out of the hut.
"I'll stay here with Kaori." Shizuku said.
"Good idea." Kurumi said as they could be gone far longer than they mean to, and something could happen while they were gone. Yuto uses the Hiraishin to transport them to Oda, Yakumo and the others.
(Omake)
After Sid turned Menma into a demon he fell unconscious. He woke up later and transforms into his new demon form and flex his muscles and new power.
"Wow. Unreal. My gosh. This is amazing! I feel INCREDIBLE! Yes! Yes! Yes! Yes! I can win! I feel great! I-can-do-this! HAAA..." Menma chants loudly.
"What are you doing?" Sid asks as he had walked into the room.
"N-n-nothing." Menma said trying to denial what he was doing.
"Really? 'Cause it looked like you were chanting to yourself." Sid deadpans.
"Can we please move on from this." Menma asks in embarrassment.
"Fine. By my estimate, this conversation and fusion between you and the Nine Tails of your dimension should have given you just enough power to wipe out Yuto." Sid said
"And?" Menma asks.
Well, let me put this in terms you'll understand: You can win! You feel great! You-can-do-this!" Sid chants with a smirk.
"Oh, ha-ha!" Menma said angrily.