On an alternate Earth during the World War II era, the world has been invaded by a mysterious alien force known as the Neuroi who take on forms similar to aircraft and spread a corrosive miasma. As a result, the armed forces of the world have allied together to combat the Neuroi threat instead of fighting among themselves. As normal humans have no effect against the Neuroi's technology, the military instead calls upon Witches, young girls who possess magical abilities capable of fighting against the Neuroi. The Witches, who are inspired by famous real-life pilots, grow animal ears and tails when using their magic, and can use special machines known as Striker Units, which feature designs based on real-life aircraft, to fly through the sky and increase the strength of their magical ability in combat.

(Play Sister Princess Theme - Reminiscence)

Standing on a ruins of an old laboratory, we see a young woman a solemn expression. The young woman is twenty years old. She has a long black hair tied in a low ponytail with an eye patch on her right eye while her golden colored left eye us exposed. She wears a white high-collared uniform jacket over a blue swimsuit and white shoes. She had a sheathed sword in hand. This is Mio Sakamoto.

501st Joint Fighter Wing Squadron Leader

Mio Sakamoto

Mio let's out a tired breath, "In the end... I couldn't protect both of them..." she muttered in disappointment and guilt.

It's been months when Yoshika kidnapped. Kidnapped... is an understatement, she was completely taken away when a large blue hand appeared out of nowhere and grabbed Yoshika, and she was there during that time, and she can't do anything but watch as the hand disappeared along with Yoshika.

As Mio stares at the ruins of the old laboratory, she can't help but disappointed at herself. "I'm sorry Dr. Miyafuji... I failed to protect your daughter." she said with guilt.

During the past months, she's been focusing on training herself to make the same thing that happened to Yoshika will never be repeated. She hasn't met and told Yoshika's family yet back in Fuso(alternate Japan) of what happened to their family member as she's afraid of their reactions.

Mio sighed once again, "Miyafuji... wherever you are, I hope you're okay." she said before turning around, only to come face-to-face with a shocking surprise.

"Sakamoto-san!" Yoshika Miyafuji greeted her with a big smile.

Mio's lone eye rapidly blinks upon setting sights on Yoshika, it took her a minute before realization hits her hard, "MIYAFUJI!" she yelled in shock as she grabs the younger girls shoulder, "How are you? Where were you? What happened? Where's the big hand?" the one eyed girl began bombarding the medical witch with so many questions.

"Sakamoto-san! Please calm down!" Yoshika cried.

"You were gone for so many months! We we're so worried about you! We thought you were... we thought you were..." Mio couldn't take it anymore, as the usually strong-willed woman pulls Yoshika in a tight hug as warm tears began to roll down her cheeks, "... but I'm so glad... I'm so glad that you're okay..." she cried.

Yoshika smiled as she hugs her back, "I'm sorry if I made you all worry... but I'm back and I'm okay." she said.

The moment was absolutely heartwarming... but of course, it had to be ruined by a certain EVO with an ego, "Well this is touching... but aren't we supposed to do something." a voice said.

(BGM ends)

The two witches looked from behind to see Eddward Marion "Edd, Double D" Smith and Rex Salazar staring at them with cheshire like grins.

Upon setting sights on the two males, Mio quickly wipes her eyes before giving them a stern glare, "Who are the two of you?" she asked in a demanding tone, though there are still a few tint of red on her cheeks.

"Sakamoto-san! Calm down! They're my friends." Yoshika exclaimed.

"She's right. My name is Eddward Marion Smith with two Ds which is why everybody calls me, Double D." Double D introduced himself.

"Sup! Rex Salazar's the name." Rex introduced himself casually.

"Mio Sakamoto." Mio introduced herself but she still doesn't trust the two boys.

"I know you don't trust us but believe me, we only came for a talk." Rex reasoned.

"Yoshika has told a lot of good things about the 501st Joint Fighter Wing and our coalition wants to form an alliance with you." Double D explained.

Mio turns to Yoshika whom is smiling at her before looking back at the boys, "What is this coalition you're talking about?" she asked in confusion.

Double D then looks around before speaking, "I would love to tell you right now, but this place isn't the best for what about to discuss, I suggest we go to your base cause I believe your leader needs to be part of this talk." he suggested.

Mio pondered for a minute, "All right. But I warned you, the base is mostly operated by females so do not try anything funny." she warned.

Rex snorted, "Please... that's the last thing super genius and myself would do." he scoffed.

"But if it's Eddy, Chad and Baron... then that's a different story." Double D pointed out with a blank look.

"Who?" Mio asked.

"Friends of ours." Yoshika replied with a smile.

bzzzttt...

We then go to an office inside a large castle-like military fort. Behind a mahogany desk, a young woman can be seen looking on a newspaper. The young woman has a shoulder-length red hair and red eyes. She wears a dark-green military jacket and wears brown shoe, and much like Yoshika and Mio, she doesn't wear any pants. This is Minna-Dietlende Wilcke

501st Joint Fighter Wing Overall-Wing Commander

Minna-Dietlende Wilcke

Minna turns the next page of the newspaper when she heard a knock at the door, "Come in." Minna called out.

Mio then enters the room, "Pardon my intrusions Minna." she stated.

"Ah, Mio." Minna greeted, "What can I do for you?" she asked.

Before Mio could answer, Yoshika enters the office, "Minna-san!" she called out with a smile.

Minna's eyes widen in shock, "Yoshika!" she exclaimed before standing up and running towards Yoshika, "Where have you been? Mio told me that you disappeared!" she exclaimed while grabbing the younger Fusoan Witch by her shoulders.

"Sorry about that... I'm been busy training in another world." Yoshika bluntly replied.

Minna's eyes blinked by her statement, "Another world?" she repeated.

Suddenly, Double and Rex enters the room, "Need any details. We can give you that." Rex mused as Double D stood still with hands at his back.

Minna frowned at the sight of the males inside her office, "Who are these two?" she asked looking at Mio, "You do know that we cannot allow strangers coming in here especially males." she pointed out.

"Oh great! That was a very warm welcome." Rex snarked before turning around scratching his head.

"Don't worry Minna-san, they're not a bad person like that Maloney bastard." Yoshika reassured.

"Yoshika! Language, young lady!" Double D scolded which surprises Minna on the process.

"Oops!" Yoshika chirped placing a hand on her mouth.

"See!" Rex spoke, "I told you, we should have Miss Joanna train Yoshika instead of Demoman!" he exclaimed.

"We'll work on that." Double D replied.

"Oh no! Please don't! I enjoy my training with Demoman!" Yoshika reasoned.

"Seriously!" Rex gasped.

As the trio began to argue, Minna gave them a cough gaining their attention, "Everyone! I would appreciate if the three of you stop arguing and please start explaining of what's going on." she said with a sweet yet nasty smile.

"Y-yes." the trio replied with fear on their faces.

After that, Double D began to explain everything to the two witches.

"So... you two are from another world... and Yoshika is currently apart of this Heroes Coalition... that's... a bit to farfetched for to believe." Minna pointed out in disbelief.

"I think they're telling the truth." Mio spoke which surprises Minna, "To tell you the truth... Yoshika didn't disappeared from a Neuroi Attack but she was taken away by a large blue hand that suddenly appeared out of nowhere." she explained, "I couldn't tell you the truth because I don't think you would believe me." she admitted.

"I see..." Minna said in understanding.

"So, now you know... what now?" Rex asked impatiently.

"Hmm..." Minna hummed, "Before anything else... why is Yoshika the only female in your so-called group?" she asked sternly.

Rex and Double D then looks at each other, "Now come to think of it... why?" the former asked.

Double D shrugs his shoulder, "I've asked the Major about this before and they told that they choose the team members randomly." he replied.

"Aren't there any other female trainees in your coalition?" Mio asked.

"There are many of them." Rex replied, "But Yoshika got the luck of the Irish and got into this team." he pointed out.

"There are more experienced female fighters than Yoshika but they mostly works alone or with other teams." Double D explained further.

Minna nodded, "Very well... we'll allow Yoshika to continue her duties in your team." he said, "But for the alliance, I want to see first hand what you people can do." she stated.

"So... you want test us?" Rex asked with a raised eyebrow.

Mio spoke, "If you look at that way, then yes. " she confirmed, "If you're really that strong as you claim, then how about helping us destroy Neurois during your stay here." she stated.

"We'll be evaluating the two of you."Minna spoke, "If you can prove that you had the abilities that can help us win against the Neurois, then we'll agree to form an alliance with this Coalition of yours." she explained.

Double D nodded, "Very well. If it means to earn your trust and erase you're doubts, then we'll gladly do it in behalf of the Heroes Coalition." he said in agreement, "Anyway, it's a pleasure working with you." he said while offering a handshake.

"The feelings the same." Minna replied while accepting his handshake.

"Great! If I knew this going to happen, I should've stayed back and get chased, and be murdered by Rolf." Rex moaned as Yoshika giggled.

A/N: Inspired from someonestupED, damnlastwords, Hope the Victor and Ace Neptune. All OCs and concepts not created by moi were given permission for me to use by it's respected creators.