Not-so-once upon a time, there is Japanese town somewhere at World 711 of Dimension 201. The town may seem normal at first but deep within there are some strange events occurring unknown to the public and it's all thanks to a tatami room of a wooden 2 story apartment complex located on the outskirts of town, with a concrete wall surrounding the grounds.

It all started when a teenage boy decided to mark starting high school by living independently and chose Room 106 at Corona House(no relation with the current pandemic) because the rent and fees were cheap.

After a fall at an archaeological dig where he meets a mysterious figure in an underground cavern and wakes up with a concussion, the teenage boy discovers Room 106 is now actually weirdness magnet which has attracted five "invaders" which consists of a ghost, an underground miko, an alien princess and her assistance, and a magical girl who says the room is a nexus of mystical energies and must be protected from other magical girls who want to use it for evil? Or probably just a cosplayer.

Their initial fight over who gets the room gets them smacked down hard by the teenage landlady, forcing them to live together peacefully while they sort the whole thing out. Over the weeks that follows, the conflict over Room 106 is gradually forgotten as its residents form into a badass crew and start pooling their resources in order to tackle the problems which drove them to "invade" in the first place.

And now... they must once again band together to protect the apartment from some unwanted guests.

Right in front of the Corona House (I repeat once more... has no relation with the current pandemic), we see a group consisting of one boy and six girls glaring at a strange man in front of them.

The boy has a lean yet muscular frame with short dark-brown hair and has brown eyes. He wears a black unbuttoned jacket over a blue t-shirt, black pants and brown shoes. This is Koutarou Satomi, an ordinary high school student.

Ordinary High School Student

Koutarou Satomi

The first girl has a small and thin body stature. She has a short purple hair with a ribbon at her right side with a "ghost" symbol attached on it and a single ahoge on top. She has a blue eyes with rosey cheeks. She wears a pure white sleeveless summer dress with big yellow ribbon at her chest, white frilled socks and black loafers. This is Sanae Higashihongan, a ghost.

Ghost

Sanae Higashihongan

The second girl has a long brown hair tied in twintails by ribbon with bells attached on it, and an ahoge on top, and has light brown eyes. She wears a detached white collar attached on a pink attire with white frilled bottom, black collar line, red brooch on her chest and a large pink ribbon tied behind her back over a white & pink lined shirt, dark-blue miniskirt, white thigh-high socks with black stitches, pink boots with ribbons and a oink miko-like arm gloves with pink cuffs. She also holds a staff. This is Yurika Nijino, also known as Magical Girl Rainbow Yurika.

Magical Girl

Yurika Nijino

The third girl is tall with a buxom figure, she has a long waist-length black hair tied in a low ponytail with an ahoge on top and wears an orange headband with ornaments, and she has purple eyes. She wears a white miko attire with an over-sized sleeves with orange designs and a native necklace around her neck, a black obi and an orange scarf are wrapped around her waist, she wears a black hakama pants with orange-colored flaming deigns, white socks and slippers. This is Kiriha Kurano, an underground shrine maiden.

Underground Shrine Maiden

Kiriha Kurano

The fourth girl has a short and petite frame, she has a long waste-length blonde hair with a light-blue frilled ribbon tied behind her back with an ahoge on top, and has blue eyes. She wears a white & blue sleeveless shirt with a laced ribbon wrapped around her neck, a calf-length white & blue frilled dress with blue metallic plates on each sides, white arm sleeves with a blue band and a bulky cuff at the end, white socks and blue heels. She wears a watch on her left wrist with a blue orb. This is Theiamillis Gre Forthorthe, the seventh princess of the Holy Galactic Empire of Forthorthe.

Seventh Princess of the Holy Galactic Empire of Forthorthe

Theiamillis Gre Forthorthe

The fifth girl has a short blue hair with her bangs splitting in the middle, she has light blue eyes, and sports a long ahoge which bends to the left. She wears a short dark-blue and white long-sleeved jacket (with the Forthorthe insignia over the heart area) over a dark-blue long-sleeved mini dress with white sleeves. She also wears white stockings and dark-blue heeled shoes. This is Ruthkania Nye Pardomshiha, a guardian knight and childhood friend of Theiamillis.

Guardian Knight

Ruthkania Nye Pardomshiha

The sixth girl has a golden-yellow eyes with brown hair kept in a ponytail by a large orange ribbon with framing bangs on both sides of her face and an ahoge on top. She wears a white long-sleeve sailor uniform jacket with a white, orange lined collar and a blue neckerchief with white lines, orange plaid skirt, white socks and brown shoes. She also wears a light-brown apron. This is Shizuka Kasagi, the landlady of the Corona House.

Corona House Landlady

Shizuka Kasagi

The strange man in front of them has neck-length blonde hair. He wears a white turban with a gem on it and wears a white mask with black eye marks and lips. He wears a red scarf wrapped around his neck, blue top, dark-blue baggy pants, a golden arm circlet on his right arm, brown bracelets and brown slippers. This is Alibaba, a new member of the Dark Force.

Dark Force Member

Alibaba

Shizuka stomps her foot on the ground, "For the last time... leave or we'll have to handles thing the hard way!" she demanded.

"Scram and don't come back!" Koutarou exclaimed, "There is no way that we're gonna hand the apartment to you!" he declared.

Alibaba crosses his arms, "No can do.'' he replied, "My bosses sees something powerful inside that apartment and they want it in their hands at all cost!'' he explained on defiance.

"Just leave already you freak!" Sanae shouted, "We don't care what your boss wants, we don't want you here!" she yelled.

"As princess of Holy Galactic Empire of Forthorthe, I Theiamillis Gre Forthorthe, I hereby order you to leave or suffer the wrath of my empire's power!" Theia ordered.

"Shut up you piece of shit of an alien race that is ready extinction!" Alibaba retorted, "Your pathetic status as a royalty has no meaning with someone like me!" he exclaimed.

Theia gasped by his words, "How... how rude!" she squawked, "How dare you call my race and myself with such rude words!" she exclaimed in anger.

Theia was about to march towards him but Ruth held her back, "Theiamillis-sama, please calm down!" she advised.

Alibaba scoffed, "Since you losers won't do as I say... guess I had to resort things by force.'' he declared before snapping his fingers.

Suddenly, red portals appears one by one as numerous Emotionless of various shape and sizes steps out, catching everyone in shock.

"Wh-What the hell are those?!" Koutarou exclaimed in question.

"I don't know...'' Kiriha replied, "... but they feel so... empty.'' she commented with narrowed eyes.

"Eeeeeee..." Yurika cried, "They look so scary!" she squawked in fear.

"Everyone... what should we do?" Sanae asked in worry.

Alibaba then spoke, "As much as I love to bash the creator of these things, I must say that she does a fine job giving us countless minions to use against losers like you.'' he commented with a sadistic voice, "Now... one last time... move it or die?'' he advised.

Despite the alarmingly large number of creatures, the group stood their ground, "We refuse!?'' Koutarou declared with the girls nodding in agreement as everyone got ready to take on the creatures.

Alibaba chuckled, "Then die it is.'' he mused.

But before anyone could make a move, a blue portal appears above them, taking them all by surprise when suddenly... five person drops down the portal and landed in front of the group before glaring at Alibaba and the Emotionless.

These persons are none other than Clarity Dresden, Cynthia, Guy Cecil, Pedro Penduko and Rook Blonko.

Blonko then pointed a finger at Alibaba, "Alibaba of the Dark Forces, we from the Heroes Coalitions are here to stop you and your plans!" he announced.

"W-Who are these people?'' Shizuka asked in surprise.

Kiriha spoke, "I don't know but looks like they're here to help us.'' she stated.

"They came out from an identified portal.'' Ruth pointed out, "They must be from another world.'' she said.

"But to where?'' Theia muttered in confusion.

Sanae then spoke, "Nee... is it me or am I seeing another ghost?'' she questioned while pointing a finger at Clarity.

The groups' eyes widen in realization, "Woah! You'e right! Another ghost!" Koutarou exclaimed in shock.

"The difference is that she has no legs.'' Kiriha pointed out.

Alibaba then jumped in shock upon the heroes' arrival, "Yikes! It's the Heroes Coalitions!" he cried in fear with his legs spinning mid-air, "They're a different story! I'm outta here!" he shouted before running into a red portal and then vanishing.

"Tch! He got away!" Cynthia exclaimed in frustration.

"We can go after him later.'' Blonko advised, "We need to deal with the Emotionless first.'' he pointed out.

And with that, the heroes and the Corona House group, despite not knowing each other, charges towards the Emotionless at the same time.

(Play ACH ROH Theme - Super Street Fighter)

The first to strike is Shizuka with her body sporting a red blazing aura, she began punching and kicking every creatures on her path, her punches and kicks are so hard that they get blasted to pieces while Yurika uses her staff to create a magical rune in front of her before shooting out a magical spell towards a group of Emotionless, blasting them apart.

But everyone are so busy fighting that no one noticed Yurika using her magic.

Theia then summons a large mecha gun before firing a powerful beam towards a group of Emotionless, blasting them to pieces while Ruth charges towards with dual swords in hand before slicing the creature into pieces.

Kiriha then ordered her haniwas, Karama and Korama, to take down a group of Emotionless and the Haniwas responded by firing a powerful beam towards the creatures, blasting them all away while Sanae blasted one Emotionless with a powerful spiritual energy, destroying the creature on the process.

Koutarou charges forward with a baseball bat, which is sporting a blue aura, and began bashing every Emotionless coming towards him while kicking them down at the same time. Meanwhile, Pedro uses a long stick in taking down one or two Emotionless, he then noticed a group of Emotionless running towards him, he then charges his right fist with magical energy before blasting it towards the creatures, killing them.

Clarity then possesses one Emotionless, taking full control of it's body. Clarity, inside the creature's body, began to attack the other Emotionless by swiping them with it's claws. After critically injuring the creatures, Clarity left the Emotionless' body, she flew up and raised her hands, "Take this! POLTERGEIST ATTACK!" she shouted as she levitates several crates in the air before dropping it down on the creatures, crushing them on the process.

Cynthia holds on tight on her pegasus while eyeing her target, "This is the end, friend!" she yelled before stabbing her iron lance on one Emotionless' chest, killing it while Guy charges at one Emotionless before slashing it while his weapon is engulfed in flames, creating a large wave of fire, incinerating the creature on the process.

Blonko then fires his Proto-Tool at a group of Emotionless paralyzing them, he then quickly charges forward delivering a swift kick towards his targets knocking them down. Then another creatures charges at him with a large metal stick, Blonko quickly transforms his Proto-Tool into a Flaming Blade and uses it to slicing Emotionless in half.

After minutes of fighting and taking care of every Emotionless in the area, the heroes and the Corona House group are now gathered together while introducing each other.

"Thank you very much for helping us." Ruth said in gratitude with a small bow.

Cynthia waves her hands, "No worries.'' she reassured, "We just did the right thing.'' she said, "But I'm really surprised that your not even bothered to know that we came from another world.'' she admitted.

Koutarou rubs the back of his head, "Well... a lot of weird things happened here, so meeting people from another world isn't much of a shock.'' he replied with a grin.

"Just who is that guy and what's his deal?!" Sanae exclaimed in question.

Then a holographic screen with Alibaba's face appears in front of Blonko, "Alibaba, a new member of Dark Force.'' he read out loud, "Not much is known about him but it seems that he experienced and survived two near-death situations.'' he stated.

"And what are the Dark Forces?'' Kiriha asked.

"It's an evil organization that loves to create chaos all over the multiverse.'' Pedro answered, "We've been dealing with them even before our own organization was created.'' he stated.

"That guy came here and demanded that we surrender the Corona House to them.'' Shizuka pointed out.

"Huh? That's weird.'' Pedro commented, "What the fuck do they want with your apartment?'' he asked.

Shizuka sighed, "That's what we want to know.'' she said.

Suddenly, another blue portal appears above them when suddenly, Gundam Tanaka with a girl in his arms and another boy drops down from it, much to their surprise.

The girl has a slim frame and has fair skin tone, she has a long back hair that extends to her waist and her bangs are split apart and an ahoge, and she has purple eyes. She wears a white long-sleeve sailor uniform jacket with a white, orange lined collar and a blue neckerchief with white lines, orange plaid skirt, black socks and brown shoes. This is Harumi Sakuraba.

High School Student

Harumi Sakuraba

The boy has a short, dirty blonde hair, he has brown eyes and wears white rimmed glasses. He wears a black buttoned uniform jacket, black pants and brown shoes. This is Kenji Matsudaira.

High School Student

Kenji Matsudaira

"Harumi-senpai! Makkenji!" Koutarou called out in surprise.

"Koutarou-kun.'' Harumi replied.

"You won't believe what we've just been through.'' Makkenji commented.

Guy turns to Gundam, "Hey, Gundam, did you eliminate every Emotionless from the other side of the town?'' he asked.

Gundam nodded, "I did.'' he answered before turning to Harumi and Makkenji, "However in the midst of my fight... I came across this girl getting chased by an Emotionless, so I save her. Then this boy arrives and helped me fend off the remaining Emotionless using his abilities.'' he explained.

Koutarou turns to Makkenji, "Wait? You help?'' he questioned in surprise.

"And what do he mean by 'using your abilities'?'' Shizuka added.

Makkenji rubs the back of his head, "It's quite complicated but long story short, I find myself with some sort of powers.'' he answered.

Sanae rubs her head with both hands, "I'm getting all confused with all of this!" she exclaimed.

"My head hurts." Yurika cried.

Ruth then spoke, "Maybe we should talk things inside, so we can all fully understand what's going on.'' she suggested.

Guy nodded, "A good idea.'' he said in agreement.

And with that, everyone went inside the Corona House.

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.