Hello Fanfiction! Soooooo I've had this story in the works for a while inside my noggin' and after Pro Heroes? Or Miraculous? finished, I was wondering exactly where I should go from there. I have two stories lined up: one is this one and the other isn't a crossover. It focuses mainly on My Hero Academia but I wasn't sure which one to do first. If you see this up and nothing else within the two universes published, then I made my choice.

Anyway, hope everyone is doing well. Here we go! I only own the plot. and nothing more...well, there is an OC and original Quirk here so...I own something?

U.A. Main Campus, 2XXX (Two weeks before the second year begins)...

Izuku Midoriya, current wielder of One for All, exited the office of Principal Nezu with Ochaco Uraraka in tow. The two had a small notebook and a velvet box stashed in the backpack the inheritor was wearing. Their meeting with the principal had been a success based on the wide smiles and small fits of a celebratory dance they were doing on occasion.

Several months prior to their meeting, the two heroes-to-be were whisked away to another dimension thanks, in part, to Mei Hatsume's newest invention (which had not been invented until prior to their return). Ever since then, they had waited patiently for the fires of action to die down around them. With Eri safe at U.A., the Joint Training simulation over and done with, and the Superhero Liberation Army staying quiet, it was time to finally enact their plan.

The two entered their 1-A dorm with a crowd of their peers all eagerly awaiting the news. Huddled as if they were trying to watch a football game on a small television, they all waited with wide grins on their faces as the duo walked in.

"Well? Can they come?" Mina Ashido asked.

The duo glanced at each other and shared a smile. "Guys, roll out the welcome mats because our friends in the other dimension will be moving in!" Uraraka shouted into the air.

The class cheered as they delivered the news. Midoriya wrapped his arm around Uraraka and held her close. The gesture didn't go unnoticed by the class, however, they cared little as they were still celebrating the news.

Of course, there was Kaminari that spoke up through all of the cheering and commotion. "We already packed up the welcome mats!"

"Shut up ya dork!" Jiro retorted.

"Kaminari has a point though," Iida commented, his voice silencing the others as the Class Rep spoke. "We're just about ready to transfer to the second dorm. There won't be a 1-A for them to join into."

"Principal Nezu already brought that up, Iida," Midoriya said. "We move in tomorrow, and we can get them in here right afterward. It gives them some time to get settled before the term starts."

The Class Rep was soon in thought. "Ah yes, having them come in as we're moving in could be a great ice-breaker for us. A chance to really bond with our new, and temporary, classmates would really help us all in the long run."

Midoriya smiled. Even on the last day of his term, Iida is still the voice of the class.

"Alright then, we will see them soon?" the speedster asked.

"Yep. Once we give them the all clear, we'll bring them here," Uraraka said.

"And how will you do that?" Yao-Momo asked.

The duo glanced at each other. "We have our ways. We'll take care of it no problem," Midoriya said.

The class said nothing more as they grabbed the last of their belongings and left the building. With the combined strength of 1-A, the transferring of materials from the 1-A dorm to the 2-A building was relatively easy. As they left the building and Iida and Yao-Momo locked the doors for the final time, the group all walked down the walkway to where they would be bunking in.

The next day...

Midoriya and Uraraka were standing just outside the U.A. Barrier. The Sun was just rising over the horizon, and being the punctual students that they were, they promised to open the portal at the time they agreed with their friends on. With his backpack now at his feet, the young inheritor reached in and grabbed the velvet box that he had within.

Opening the box, he revealed the Janus Stone: the object that allowed them to traverse dimensions and return to their home. As Midoriya raised the amulet, Uraraka spoke up. "You think they're awake yet?" she asked.

"Probably. I hope time isn't too much of a factor here," Midoriya responded.

Uraraka nodded and yawned. Her hair was still a little messy since they had both rolled out of bed at the same time. "Sleep well Deku?"

"A little bit..." was his response.

The gravity heroine looked at him quizzically. "Nightmares again? Or is Aoyama leaving you cheese again?"

Midoriya chuckled. "Seriously! When you told me he appeared on your balcony and just left it all there, it scared me!" She exclaimed.

"Well imagine being me when that happened. Honestly I felt like leaving a bear trap or something out there in case he did it again, but I didn't."

"Because it wouldn't be a nice thing to have a trap there?"

Midoriya shook his head. "No, because I don't know where to buy one," he said.

Uraraka shook her head while trying, and failing, to suppress her laughter. She doubled over and laughed into the ground, earning a smile from the inheritor. He felt his hand gravitate to the heroine and wrap around her soft hands. Her laughter quieted down a little bit as she felt herself blush. "D-Deku?"

"Yeah?"

She stood straight and looked into his emerald green eyes. "I-I really like this."

He smiled. "Me too."

The two stayed quiet for a few moments before they separated. He raised the Janus Stone up with Uraraka's phone with it. Immediately the stone began to glow bright red and the world in front of them became distorted. A still image of the Eiffel Tower appeared along with an orange and purple sky.

Satisfied, Midoriya turned the Stone to lock in his selection. The image disappeared and was replaced by a very familiar portal. Uraraka grabbed her phone from the successor and dialed the number she hadn't used in a while.

"Ladybug? Hey, it works!" She exclaimed to Midoriya. "Awesome! Hey, the portal is open so come on through!"

She hung up the phone and waited. After a few moments, two figures leapt through the portal and landed in front of the two heroes. Ladybug and Cat Noir, the heroes that had helped them when they were stranded in their universe, were finally here. Ladybug's suit had changed while she went through the portal. She still had her signature ladybug-esque attire, but now her boots were black as well as her elbow-high gloves. She had light armor on her shoulders and what looked like armored padding throughout her suit. Her mask covered most of her eyes and forehead with the corners drooping down her face.

Cat Noir's looked more casual than hers. His full leather attire changed to black pants and boots. His top consisted of a zipped leather jacket and clawed gloves. His ring was still there, but fully black with a green paw in the middle. His eyes were as green as they usually were: slitted and fully green with a shine of the wildchild persona he held back home. His ears...were real cat ears as well as the tail whipping around behind him. His mask was the same.

Once they appeared, the portal behind them closed. "Ladybug! Cat Noir!" Uraraka bellowed.

"URARAKA! MIDORIYA!" They all rushed in and embraced in a massive group hug. "Hot damn it's been too long!"

Midoriya smiled. "I'll say. It's been a long six months!"

Cat Noir broke the hug. "Six months? Dude, it's been almost two years since we last saw you!" He exclaimed.

The two resident heroes felt their jaws dropped as the hug fully broke. "Wha-WHAT? Two years!?" The both exclaimed.

The two Miraculous heroes nodded. "Yeah. We tried calling and texting but they wouldn't go through. We figured that it had something to do with the rift closing so we left it alone," Cat said.

"Yeah. Besides, there was no other magical artifact in the world that could match the Janus Stone. We checked too," Ladybug commented. "It was surely a surprise when you called."

Uraraka felt tears well up. "I-It's been so long..." She smiled. "We have a lot to catch up on."

The two heroes nodded. Before they took a step toward the U.A. Barrier, Cat stopped them. "Sorry, but this mask is killing me," he said.

"Same here. Everything feels so artificial here. I almost can't feel my Miraculous," Ladybug said.

As they moved to remove their masks, the two resident heroes realized that they were about to give up... "Wait, hold on!"

Their masks slid off of their faces. Cat's mask turned his eyes from slitted green to its normal green irises. Ladybug's blue-belle eyes shimmered in the Sun and free from its confines. "Now that's better," she said.

"I'll say. Mine was starting to hurt," Cat said.

Uraraka gestured to the two of them. "Bu-Bu-But what about your identities?"

The two Miraculous heroes glanced at each other and blushed. "We-Well..." Cat stammered.

"That's one of the things we gotta catch you up on. We kinda...had a little accident," Ladybug commented. "Adrien and I accidentally revealed ourselves after a fight with an akuma."

Cat nodded. "It was sort of my fault," he admitted. "Thankfully we didn't have to give up our Miraculouses."

Ladybug nodded. "So the only time we use our hero names is during a battle and within earshot of anyone not on the team. Otherwise it's 'Adrien stop goofing around' or 'Mari your yoyo is tangled on that construction crane again'."

Adrien smiled. "You can imagine how many times that happened."

Marinette playfully smacked her partner. The two resident heroes laughed before handing them two laminated passes. "These two will get you into U.A.," Uraraka said. "Our principal was really kind to give you guys the go-ahead."

"Personally I feel like he just wants to meet two beings from another universe."

Adrien grabbed his pass and looked over their shoulders. The school itself towered over them and just barely protected by the wall in front of it. He managed to see some movement inside as a wide variety of adults were moving through the building. "C'mon, Principal Nezu will want to see you guys before we start the day," Midoriya said.

The two Miraculous heroes nodded and followed the two resident heroes through the barrier.

Meanwhile...

Inside of the campus and inside a dark room, a lone computer screen turned on. A student walked over and input their password, revealing the secret within. The face of one Tomura Shigaraki appeared along with the pointed face of Re-Destro. The student saluted to the two before the Grand Commander of the Meta Liberation Front. "Sir..." the voice, female, said.

"Well? Are you in?" Shigaraki demanded with his raspy voice.

The student nodded. "I'll get you what you want without a problem..."

"Good...that little brat Midoriya should still be enrolled there. Get what you want from whoever you want, but I demand any information concerning him! I don't care if it's information about a toothache he got when he was 5!" The decay villain boomed.

The student nodded. "This kid must be really important..." she muttered.

"Don't you dare ask questions. A lot is riding on you right now. Screw this up and you're done! FINISHED!" And the computer shut off.

The student sighed heavily as she switched on the lights in her room. She grabbed her gray U.A. blazer and brushed some lint from it. "My first year at U.A. High...well, this'll be fun."

Alright everyone, this story should receive regular updates with no long hiatus in between chapters...I hope. My Hero season 4 just dropped so support the official release on Crunchyroll or Funimation...or wherever it airs legally. Miraculous season 3 is just wrapping up as well...with the finale leaked online apparently. I'm gonna wait for Felix and Chat Blanc to air before I watch it though. Anyway, I hope everyone is doing well and I'll see you guys later!

-Newage