(Gracemeria, Republic of Emmeria - April 1, 2022, 0713 hrs.)

"Please explain." Itsuka requested while having a talk with his former wingman from the Belkan War.

"Buddy, I saw someone who looks just like you back when we flew over the Belkans years ago." Foulke explained.

"No way!" Itsuka reacted with shock. "There is another me here?!"

"I swear I saw your lookalike! As well, I caught a glimpse of the girl who looks just like Tohka here. I'm not sure but if recent events are to fit the picture, it appears they might have came from a dimension more or less different from our own."

Itsuka was having a hard time comprehending the situation.

"The sudden situation here, the strange craters and the strange lights, they all fit. That's why I came to see you...to tell about this."

"Okay. I understand. Look, if we don't find the other 'me' in time, we might be in a situation far from our control. I know this because of my activities before the damn war in Osea took place. I'm also starting to get worried about our son."

"I see. Buddy, if I can make up for what happen back in Belka, then I'm your guy to help you out."

Itsuka smiled after some hesitation.

"Of course. Welcome back, Pixy."

A slight smile was shown by his wingman as the two can finally fly again in sync just like the early days of the war. Suddenly, Tohka arrived with a tray containing tea and its teawares and scones.

"I brought you some tea and scones." She said to the two. "Anything wrong?"

"Nothing, dear." Itsuka replied. "Just some calm talking."

"Strange. I do hear you people talking about doppelgängers of ourselves. Anyway, drink up."

"Thank you, Tohka." Pixy replied gratefully before they began drinking.

"Buddy, you know someone who can help?"

"I think I know a few who can do that." Shido assured Pixy.

(Sand Island Air Base, Osean Federation - April 2, 2022, 0928 hrs.)

The team were discussing what they found so far in their previous missions. Because of the revelation that the Spirit Shido, Tohka and Origami encountered earlier was aligned with Greyhound and the Grey Men, their options are slowly becoming limited.

"Let's review the situation. Because they have a Spirit with them, they have a guarantee that they can approach us on almost equal terms." Tonomachi reviewed. "And because of her ability to travel through dimensions, they Grey Men could escape to the other side and rebuild what D.E.M. lost to its former glory. Is that right, Tobiichi?"

"It's highly likely they would do that in the event that their plans fail here." She agreed. "Based on that, we may have to reasses our strategy and find something to get us home."

"Boy, I almost forgot." Nia uttered. "I almost forgot to mention that Ratatoskr has finished analyzing the energy signature back at Tenguu."

"They did?!" Shido and Tohka reacted.

"Nia, you're sure about this?" Origami asked to confirm.

"They did. They were starting to build a gateway to this dimension the moment we went here first."

"Shido, Origami, you know what this means?"

"Yes, Tohka. We are going home." Origami answered.

"Yaay!"

"Calm down, Tohka." Shido calmly responded. "We are going home but we have some things to fulfill."

"I know. I'm glad we have some good news."

"Guys, what does the other dimension look like?" Victoria curiously asked.

"Uhm...well, in our dimension, things are quite complicated." Shido replied. "I can't think of some words to describe."

"Oh, geez."

"Don't worry, Victoria." Nia assured her. "You'll see it."

Then, Colonel Voycheck arrived. The team saluted in response.

"Good morning, people." He greeted.

"Good morning, sir." Tonomachi replied. "All members are accounted for."

"Very well. Now, on to more pressing matters."

The team sat down to hear the intel.

"After analyzing the data we've acquired in Waldrech and Aluro, we have confirmed that a base within the old Avalon Dam is now functional. Originally made to conduct missile launches, they've retrofitted it to house a bunker to conduct experiments regarding human augmentation."

"Hugh!?" Shido reacted.

"Something wrong, Itsuka?"

"Uh...nothing, sir."

"Okay. Command is now preparing to launch a counterattack as we speak."

The team stood up.

"We'll be ready for it at anytime." Chihaya said.

"We're counting on you. The world is waiting."

Voycheck left the room. Tonomachi has some thoughts.

"Speaking of going home, the guys in Aurelia has found out that the most probable location to head back for your dimension is in the same area, Avalon."

"You're kiddin,' right Captain?" Shido asked.

"I'm not. There is no turning back."

"Shido, listen. If I'm with you, I should be ready for anything and even my father would see my potential. It's like the time he fought in the Belkan War." Chihaya declared.

"Thanks, Chihaya."

Then, the Spirit in her kimono Astral Dress arrived.

"Excuse me, but do you have room for one more?" She asked. "I want to return some favors."

"Are you sure you are going to do this?" Miku asked with concern.

"Yes. I can't let you people get hurt badly from the mean ones."

Shido hesitated for a moment before replying.

"Sure. By the way, what is your name?"

"Mira. Mira Shimenki."

The team began to prepare their aircraft for take-off to the mainland and the Spirits were boarding the Globemaster as well. As the fighters began to taxi to the runway, radio communications were maintained between them and the control tower.

"Gryphus Squadron, Warowl Squadron, White Ash, maintain your speed to the runway. Wind speed is 102 degrees at five knots." The tower observed.

"Roger, control." Tonomachi responded.

When the planes are in position, they began to check their flight controls.

"All systems are green, requesting take-off."

"Copy. You are cleared for take-off. Good luck."

"Roger. Okay guys, power up."

The Gryphus Squadron fully opened the throttle and the planes thunder down the runway before lifting up. The Warowls and the transport plane followed suit moments after.

"Gryphus, Warowl, White Ash, maintain altitude of 20,000 ft. until you reached the target. Good luck."

The team formed up before flying to Avalon.

(Mund Valley, Principality of Belka - April 3, 2022, 1832 hrs.)

While flying, Crux began radioing the team for a status report.

"Crux to all units, allied reinforcements are approaching." Crux told the team. "Assist them to augment our attack power."

"Copy, Crux." Tonomachi affirmed.

As the team are approaching the dam, friendly radar blips are shown, indicating reinforcements for the operation. A radio transmission was then picked up.

"To all allied aircraft, do you read? This is Lieutenant Colonel Jack Bartlett of the O.A.D.F., we are here to provide assistance."

"Copy, colonel. Thank you for offering your help." Tonomachi replied. "This is Captain Hiroto Tonomachi of the Aurelian Air Force, we're here for the operation."

"I'm counting on your kids to make sure that we get out alive."

"Hehehe. Very funny."

Another radio transmission, this time from Osean and Yuktobanian special forces teams, was recieved.

"This is Goblin Eye, all units are on stand-by and awaiting further orders." The Osean team leader reported.

"This is Colonel Obertas of the Yuktobanian special forces team, 'Yasen', we are also in position as well." The female Yuktobanian leader echoed. "We'll be watching you people fly as well as fight."

When the team have the dam in sight, Shido was recalling the dream he had earlier regarding the place.

"This is real. The dogfight...it all took place here." He recalled quietly. "Would Tohka and the others be okay?"

Suddenly, they are targeted by the Belkan radar systems.

"Look alive, guys! We're being tracked!" Chihaya warned. "All units, break formation and engage!"

"Roger!"

The Spirits in the plane began preparations to head out to the fight.

"Get ready!" One of the crewmembers told the girls.

"Alright everyone, get up!" Tohka echoed and they stood ready.

As the girls saw the cargo doors slowly opened, the lights remained red.

"Listen up, do you have your emergency chutes with you?"

"Yes, we have!" Miku answered. "Why do we need it while we can just fly?"

"In the event that your mana is not working, you can use it to safely go down. We'll recover you in no time."

"Okay!"

"Ready, guys?" Origami asked.

"We are." Nia agreed.

Then, the lights go green after the doors are fully-opened.

"Go, go, go!" The crewmember shouted and the Spirits jumped out before flying off to the dam. Once the Spirits formed up, Origami was leading the pack.

"Everyone, we need to keep casualties to a minimum. I want everyone on guard and focused during the operation." She ordered.

"On it!" The girls responded.

Back on the dam, the bulk of the Grey Men's airpower was shown alongside Emiya and Greyhound with his FALKEN. Bandersnatch units also appeared to assist as well as AA defenses.

"Be advised, multiple bandits approaching. Bearing 325." Crux observed. "It looks like they mean business."

"Looks like this will be their last stand." Brandon commented. "Everyone, keep an eye out."

Greyhound began transmitting a message to Shido.

"I knew you would show up sooner or later, Takamiya." He greeted. "You won't get away with the loss of our progress."

"Aren't you ready to give up already?" Shido responded. "You ain't getting away this time."

"We'll see who goes down first."

The dogfight began as multiple aircraft attacked each other for air supremacy. The Spirits began to assist in handling Emiya and the Bandersnatch units while ground forces began shooting.

"Isarov, sitrep!" Obertas requested.

"Lot's of gun towers and armoured vehicles guarding the site." Isarov reported. "We need to call in air support."

"Copy."

As the allied forces continued the fight, Obertas began transmitting a request for an air strike.

"This is Obertas, multiple defenses are blocking our path." She reported. "We are designating targets for the attack."

"Copy that, I'm on it." Brandon agreed.

"So do I." Bartlett followed. "Okay, kid. Let's do this."

"Roger."

Shido began arming his air-to-air missile at Greyhound and he began to chase his adversary in a heated dogfight.

"Seirei, Fox 2, Fox 2!" He shouted before firing a missile which caused some light damage.

"Tck! Can't believe it!" Greyhound felt the impact. "Next one will be on you."

Greyhound began rolling behind Shido before chasing him. Not far, the Spirits began attacking the Bandersnatch units while Bartlett and Orimura began their attack run on the ground targets. It wasn't long before Mira unveiled her Angel.

"Merlin!" She called out her Angel, revealing its form as a wizard's staff.

"Whoah!" Tohka said in awe.

Then, Mira began launching ice attacks on the robots, slowing and freezing them down.

"Your turn, guys!"

"On it!" Victoria replied before preparing to summon her Angel. "Arthur!"

Once acquired, she began to slice the disabled robots to finally destroy them.

"Good job, Victoria!" Origami commented. "We still have some more work to do. Tohka, we'll handle Emiya."

"On it, Origami."

Goblin Eye and the Osean special operations team began slowly advancing towards the base. One of them began to prepare to cook a grenade.

"Grenade out!" He shouted before throwing it at a group of Grey Men soldiers. The explosion finished off a few of them.

"Go, go! Maintain your cover!"

"This is Goblin Eye, we are facing stiff resistance. Requesting support, over."

"Snipers!" One of the Osean shouted before another shot the sniper in response.

"Stay cover!"

Bartlett began arming his AIM-9 at a Belkan Berkut.

"Fox 2!" He fired the missle and it hit the target. "Enemy down! Moving to next target."

"Sierra hotel, Heartbreak One but we've got some Belkan tigers on the south side." One of his fellow pilots reported.

"Roger that. Any damaged aircraft, withdraw immediately if you can."

Greyhound continued his pursuit on Shido while arming the tactical laser system. He fired it but it wasn't close enough to touch Shido's plane.

"Just! Stay! Still!" Greyhound barked.

Shido was starting to feel the pressure.

"This is Gryphus 7, I need assistance!" He requested.

Tohka and Origami were now battling Emiya near the reservoir.

"You have to stop! We can help you!" Origami pleaded.

"Why should I?" Emiya responded defiantly. "Greyhound told me everything about you."

"What do you mean? Tohka asked.

"After you took down the company back at your dimension, he came here to help me when I was alone. Thanks to what he gave, I can't leave his side."

"No way!" Origami uttered in her mind. "So this is what Greyhound's doing?"

"Time to feel the smite of Morgan!" Emiya began unleashing her attack using her Angel on the two Spirits.

"AAARRRHHHAG!"

The two were hit.

"Huff...huff...Tohka, we need to regroup!" Origami suggested.

"...hyy...Yeah..." Tohka agreed before hearing Gryphus 7's calls for help. "Shido!"

"Tohka, wait!" Origami warned but Tohka left to find Shido. "Any Spirits nearby, need back-up!"

When she did, Greyhound was arming his laser for another shot. Shido was also closing in to return fire.

"Shido!"

She dashed towards the two and Shido noticed her coming closer.

"Tohka?" Shido uttered before she was direcly in the path of the laser.

"What the?!" Greyhound uttered before pressing the trigger.

Once pressed, the laser was fired but Tohka began shielding Shido and was pushed back because of the force of the weapon.

"TOHKA!"

For a moment, he didn't get a response.

"I'm fine, Shido." She told him. "Just some scratches."

"Whew! I'm glad you are safe." Shido sighed in relief. "Greyhound!"

He began attacking the FALKEN with a barrage of bullets and missiles. Greyhound is in a losing position.

"Damn you, Takamiya!" He cursed. "Emiya, open the portal now!"

"You sure, Greyhound?" Emiya asked while under fire from other Spirits.

"Do it!"

"On it." She began accessing a control panel from her left wrist and the ground in the reservoir was shaking.

"You felt that?" Miku asked. "The ground's shaking."

"Looks like they are opening a door or something." Nia observed. "Keep on the lookout."

As ordered, the newly-built gateway was revealed from the ground and began rising up to the sky. The allied soldiers were shocked.

"Holy...what is that thing?!" Goblin Eye asked.

"I don't know." Bartlett responded. "But something tells me it's trouble."

"We are confirming the appearance of an unknown structure." Crux reported. "All units, destroy it immediately!"

The gateway was activated to reveal a portal.

"If I can't succeed here, then we'll just take it to Japan instead!" Greyhound defiantly said before pulling away from the chase. Mira followed suit alongside a few Grey Men fighters.

"Are they heading for the portal?" Bartlett wondered.

"Looks like it, but where is he going?" Obertas responded.

"Beats me but we better destroy the support structure for good."

"Not yet." Shido responded. "If I can recall, he was heading for Japan. That means..."

"What?" Tonomachi asked. "What is it?!"

"He's heading for our home." Origami answered. "We can't just stay here!"

"Yeah! We're going back!" Tohka echoed.

"Gryphus 1 to Crux, we are going to the other dimension in pursuit of the two targets. How copy, over?"

Crux paused for a moment regarding the request.

"Copy. Good luck, sir." Crux agreed.

"Tell command if we don't come back in a month, it means we are lost or late."

"Sure. We'll pray for your sucess as well."

"Thank you. Guys, follow Shido's lead."

"Why me!?"

"The guys here don't know about our dimension, so we act as their guides." Nia said.

"Shido." Tohka uttered.

"Shido." The others echoed.

"Darling." Miku followed.

Shido was glad that his friends are with him.

"Thank you, guys."

He began to head forward to lead the team.

"All units, follow me."

"Kid, we'll handle things around here. Just get that bastard off your dimension." Bartlett ordered. "By the way, call me Heartbreak One. Nice to meet you."

"Thank you, sir."

The team began to head for home in their attempt to pursue Greyhound and Emiya. In the E-767, Crux spotted two unknown fighters.

"Warning, we have two unknows heading at 180!" Crux reported. "Probably enemies."

Then, a radio transmission was received.

"This is Captain Itsuka of the Galm Team, we'll join their quest as well." A pilot said to them.

"Galm Team..."

"Ya hear that?" Bartlett asked his allies.

"It's the Demon Lord!" Sea Goblin responded.

"He really did came back!" One pilot shouted with excitement.

As the allies cheered of their return, the two F-15C Eagles of the famed Galm Team arrived on the scene.

"See that portal, Pixy?" Itsuka asked his wingman. "That's where we are heading today."

"Roger, Cipher." Pixy replied. "Time to dive into the fireworks."

The two planes flew towards the portal to meet up with the others.

A/N: Okay, so we have a boatload of characters going after the villains in Tenguu. Everything's in place. Next stop: Japan.