-----NO ONE'S POV-----
It was early in the morning for the inhabitants of 1-A dorm. Iida was waking up everyone in the dorm getting them in line for their first day back to school.
"Everyone should be finished doing whatever you have to do in the bathroom within 20 minutes!" He said in a commanding tone and a whistle in his mouth his hands chopping the air signaling them and guiding them to their designated baths. While everyone was busy preparing, staff from the UA cafeteria was already cooking the class's breakfast in their kitchen.
Once everyone was dressed and had already eaten they were forced to form a line by none other than their class representative, Tenya Iida.
"Iida come on! We're 30 minutes early for the first class!" Denki groaned sadly.
"I have to say he's right." Sero yawned.
"Mineta even passed out right now." Kirishima pointed at the sleeping grape head on the floor.
the girls were trying to stay awake too.
"Bakugou is more pissed than usual too." Ojirou said.
"Just hurry up four eyes before i blast you to outer space!" Bakugou yelled.
Iida was busy counting and his expression changed. "Where is (y/n)?"
"Come to think of it i didn't see her in the bath." Asui said.
"In fact i didn't see her come out of her room at all." Momo said. They looked at the table and saw a plate of food left untouched which could only belong to their missing classmate. Before anyone could comment the front door burst open by Aizawa some of the teachers in UA and Recovery Girl.
"Where is (y/n)?!" Aizawa demanded in a panicked state. If the class wasn't awake yet, they definitely were now. Iida gave a salute greeting the teacher.
"All Might!!" Deku exclaimed waking up.
"We were just discussing that right now sir."
"She could still be in her room." All Might said.
"Then lets go." Midnight said.
The teachers rushed up to the fifth floor. They stood in front of (y/n)'s room listening in but they heard nothing. Aizawa knocked three times then a loud bang and scratching sounds could be heard from the other side. He twisted the knob but it was locked.
"Stand back!" The Heroes took a step back Aizawa kicked down the door harshly forcing it to open. Gray leaped forward and ran out the room as quickly as he could. He dodged the hands of students that wanted to pick him up. He was panicking was only did what came on instinct.
"Gray! What's wrong?" Midoriya asked but the cat was terrified and had his back arched and his fur stood up making him seem bigger that he originally was.
Kouda walked up to the cat and talked calmly.
"What is it what happened?" He asked Gray's eyes slowly calmed down and so did his breathing.
"It's (y/n). She's.."
The teachers went in her room finding nothing out of the ordinary. Aizawa stood beside her bed her thick blanket sprawled out forming a lump. Midnight checked her bathroom.
"Nothing."
All Might checked out the porch. "Nothing."
Aizawa reached down at the blanket and pulled it away revealing (y/n).
"A child." Gray finished.
(y/n) quickly sat up her back pressed against the wall.
"W-who are you?" She asked them clearly terrified at the people. "Wh-where am i?" She asked again. Her eyes gleamed for a moment and her expressions became worried and pouted. "Where's my brother Naruto?!" she demanded.
Aizawa bent down to match her height. "Do you not remember?" The girl looked down swimming in her own thoughts her eyebrows lightly furrowed. She looked at Aizawa.
"No." She shook her head. The pajama she wore was too big, the shirt she had on was so loose on her it reached down her legs under her knee and the collar went over her shoulder.
"Lets get you changed first." Aizawa said.
"NO!" (y/n) yelled running away and out the door but because of the long pajama she wore she accidentally stepped on it and tripped landing face first on the floor with a audible smack. The students were too shocked to react looking at the child version of (y/n). Shakily the kid pushed herself up and sat, angrily looking at the floor, pouting as her eyes began to swell up with tears. She raised her hands up to her forehead and rubbed the pain away whimpering.
"Now now. What kind of heroes are you. That's no way to talk to a child." Recovery girl said walking up to (y/n). Lightly she pulled her chin up to inspect the bruise on her forehead.
"Im fine!" (y/n) said sniffling. Recovery girl leaned down and planted a kiss on her forehead and immediately the bruise went away and (y/n) felt better. Recovery girl pulled away and smiled at the kid. (Y/n) was stunned and just stared at the the old woman rubbing the spot where she kissed.
"There, better?" Recovery girl asked.
"Mhm." She nodded.
"Here." She pulled out a pack of candy and opened it handing some to the child. "For being a good girl." (y/n) Eyes her. "Go on." She hesitantly took one and placed one in her mouth.
"Sweet isn't it?" The kid nodded again.
"i'll give you more if you behave, okay?" She nodded again.
"Now lets let you out of that oversized clothes and give you something more fitting." Recovery girl offered her hand which (y/n) shyly took. They two walked in (y/n)'s room and Recovery Girl kicked out the three heroes out of the room.
"What the hell just happened?" Was the thought of everyone who witnessed everything.
.
.
"Sir could this just be another one of her transformation jutsu?" Midoriya asked.
"I wish it was but im afraid this time is real." Aizawa said sighing burying his face in his hand as he sat on the couch in the common room. The stress was getting to him "Reverse's quirk allows him to rewind time. More specifically, the person he used his quirk on. Its like Advance's quirk but instead of making them old and turning them to dust on the spot. He reverses and back tracks the human body's growth cell and eventually rewind out of existence. Ultimately, they never existed." Aizawa said rubbing his temple in an attempt to calm himself.
"Can she be cured or is she going to stay like that from now on?" Momo asked.
"We don't know yet." All Might said.
"We have to do something." Midnight said with furrowed brows.
"We should tell Konoha about what's happening to (y/n)."
"What?" Aizawa broke because of the stress his mind was on. "You want to go to her village and face the Hokage saying, "We're sorry but a villain used a reversal quirk on your beloved student and now she's rewinding out of existence. Go beyond plus ultra!" Aizawa said with utmost sarcasm.
Everyone was more surprised at Aizawa's outburst. "Sorry. I snapped." he said sighing again. It took a while to process but most of the students were holding in their laughter.
The elevator dinged and out came Recovery girl and (y/n) In a dress with half leggings underneath. "We're here now." Recovery girl said. (y/n) Opened her eyes and quickly went out of the Elevator.
"I'M NOT GOING ON THAT THING EVER AGAIN!" She exclaimed then ran to the common room. Their eyes on her made her stop running on the spot. She quickly ran behind recovery girl frowning at the students who stared at her.
"Recovery girl. Did you measure her height?" Aizawa asked.
"119 cm." She informed. Aizawa nodded. If she went lower than that they'll know if Reverse's quirk is still in effect.
"How old are you (y/n)?" Midnight asked crouching down to the child's height.
"Seven." She answered back.
"What is the last thing you remember?"
"I was with Mikoto-okasan in the Uchiha village preparing food for big brothers and Fugako-Otosan to come home and have dinner. After that Me and my brothers laid in the garden watching the sky." she passed. "I think that's when i fell asleep."
The school bell rang echoing through the property. "Alright everyone get to class." Aizawa said to his students.
"What about (y/n)?" Kirishima asked.
Everyone looked at the girl.
"I want to explore!" She cheered.
"I don't think now is the right time (y/n)." Aizawa said.
"But.." Aizawa ordered the rest of his class to get going.
(y/n) pouted to herself. She wasn't really thinking about them she was more focused on finding someone else to fulfil a promise that was made yesterday, or in present time, a promise that was made a long time ago.
"Come now. You should eat up first." Recovery girl said. (y/n) huffed and followed anyway. She sat beside Recovery girl and quietly ate her food.
.
.
"What are you planning to do Aizawa?" All might asked.
"We have no other choice. Continue with the research and tell the Hokage what happened." Aizawa replied with another sigh.
"She's so cute!" Midnight said with a muffled squeal as she tried to remember what (y/n) looked like or at least the kid version. "I just want to pinch her cheeks!"
All cuteness aside, they were worried if she would stay like that forever or actually rewind out of existence. The students looked at one another all worried for their friend.
.
(y/n) looked around at the unfamiliar scenery surrounding her. Her hand tightened around Recovery Girl's hand.
"What is it?" She asked.
"Im not in Konoha anymore, am i?" She asked looking up at Recovery Girl with a saddened expression. She looked down at (y/n) frowning as well.
"No but don't worry now we're doing whatever we can okay?"
"Okay." She said looking down pouting.
They went to Recovery Girl's clinic with her on the bed and Recovery Girl on the computer typing away. She would glance around the room busying herself. It was clear to her she was far away from Konoha, how she ended up here was a mystery to her. After their talk with the Uchiha's last night, this was not what she expected. She wondered if they were looking for her or was this part of their plans for tonight. "I wonder if Naruto is experiencing the same as i am." She said to herself looking out the window.
"What was that?" Recovery Girl asked looking at her.
"Oh. Nothing! Just talking to myself." (y/n) Said looking back at Recovery Girl with a smile.
Hours later, she watched the hands change on the clock. The running hand going around and around in circles she lost count. Her patience was wearing thin. She had a visible displeased look on her face. She huffed out then the school bell rang. Sitting up she looking up.
"What's that?"
"The school bell. Its time for lunch." She looked at Recovery girl. "Lets go eat something?" She nodded and pushed her feet off dangling off the edge of the bed. Recovery girl got down from her chair and helped (y/n) down. The two walked down the hall hand in hand all the way to the cafeteria. There were students everywhere (y/n) quickly hid behind Recovery girl when she saw them.
"Getting shy? Don't worry they wont hurt you." They continued walking until they found an empty seat. "Go on. Take a seat."
"Where are you going?"
"Just going to get some food."
"But i can help." recovery Girl chuckled.
"No need. Im sure one of the student would love to help. You sit here and keep the table reserved."
She watched as Recovery Girl walk to the counter. She sat back down on the bench her hands sprawled on the table patting it.
"(y/n)!" She turned her head to the voices that called out for her. It was here classmates jogging towards her.
"Hey! How've ya been?" Mina asked looking at the kid with an overly gleaming smile.
"I'm good." She said quietly.
"You're getting food? Who are you with?" She looked up at Shoto who asked her the question. Her eyes shined looking at his heterochromia eyes. Embarrassed that she might have stared for too long she looked to the ground fiddling with her fingers.
"I was with Recovery Girl." She trailed off.
"Awe! Look at her getting all shy!" Hagakure teased.
"Good job Shoto. Making her flustered like that." Sero said patting Shoto's back. Meanwhile he looked at Sero with a confused look.
"Yeah shes blushing alright." Kaminari leaned in looking at her face causing her shy away. She turned away and hugged whoever was closest to her and nuzzled her faced into their stomach.
"Oh." Uraraka said giggling and patting (y/n)'s head.
"Look what you boys did." Jiro scolded.
"What?" Kirishima asked defensively.
"(y/n)." Recovery Girl called out with a staff member placing the tray of food on the table. (y/n) peeked out.
"Come now."
She let go of Uraraka and sat back down looking at the food that was placed in front of her. She was slightly disappointed not seeing Ramen but she rolled with it.
After a few scoops of food in her mouth with Recovery girl sitting beside her and the rest of class 1A sitting with them, (y/n) was even more bummed out. She sighed with a pout on her face.
"I want to go home now." She said sounding serious. Recovery girl looked at her.
"Im sorry but we can't do that now." That wasn't what she wanted to hear. She glared at the floor tears slipping out of her eyes. She sniffed. Asui placed a hand on her back trying to soothe her but (y/n) brushed it off.
"NO!" She stood up on the seat. "This is not how we planned to spend our birthday." She angrily said and jumped out running out of the cafeteria and out the hall.
"Catch her!"
She was used to this though. So, dodging the student's attacks were nothing. She was shocked though when a really sticky tape caught her arm yanking her back. She looked back angrily. She shook her hand trying to get the tape off.
"NO! Get off me!" She pulled out a kunai and cut the tape and continued running.
"What the-" Sero looked at his tape.
"Go after her she's getting away!" The students desperately tried to get her afraid she'll go outside UA and get lost in the city. How are they going to explain that to the Hokage now?
They stopped running and looked at (y/n) Standing in front of them a few meters away. She made hand signs it wasn't as fast as the last time she did the same jutsu. She inhaled deeply.
"Fireball Jutsu!" She huffed out ball of fire growing more and more.
"Stand back!" Shoto said making an ice wall. The fire was hot melting the ice in a matter of seconds. The best he could do was keep feeding it until she runs out of breath.
Once she was done, the students took her restraining her while she struggled.
"Let me go!" She said.
"Please calm down! We're not going to do anything to you." Izuku said but she didn't stop trying to get out.
A few minutes later they finally got her to calm down and they brought her to the clinic with Aizawa, Recovery girl and the rest of class 1A. They were discussing what to do with her to keep her safely inside UA but the little girl chuckled and looked up at them with a cheeky smile.
"What is it?" Aizawa asked.
"You guys are so easy to trick!" She laughed more and gave them a closed eye grin and a salute. "Welp, see ya!" The kid exploded into a cloud of smoke.
"A clone?" Aizawa was wide eyed looking at the spot on the bed where (y/n) was.
Class 1A were in panic. The news eventually made it to Principal Nezu.
"Close all the gates." Nezu ordered.
(Y/n) was in the woods well inside UA's walls. She didn't know where to go so she looked for somewhere secluded and away from people. Anywhere with trees was the only place she felt at ease so there she was running through the trees until she finally came across a tall wall. The barrier that separated UA's main building from the training field.
"What is this? Where the hell am i?" She turned left then to right watching as the wall stretched out into the distance as far as her eyes could see. She placed her foot on the wall and tried to jump but it was too tall for her. She tried couple more times but failed. Sighing she walked to a tree and sat under it. "It should be 3pm by now." She whispered to herself looking up at the sky. Her lips quivered and her eyes began to swell with tears.
"Tomorrow we'll have a feast! Itachi is home and so is Fugaku. How does that sound, (y/n)?" The woman looked at her smiling and giggling with her.
"Can we? Can we really?!" The little girl asked with excitement.
"I don't see why not. It is yours and Naruto's birthday after all!" A wide grin formed on (y/n)'s mouth as she began cheering in excitement engulfing Mikoto in a bear hug.
"Can we get some mochi ice cream later and dangos for Itachi?" She asked.
Mikoto laughed watching (y/n) all excited for tomorrow to come. She placed a hand on the little girl's head and smiled.
"You love mochi ice cream don't you?" She giggled again.
"YEAH!!" The girl said overjoyed.
"Then mochi's and dangos it is."
"YAAAY!" She girl cheered jumping up and down.
(y/n) tucked her knees to her chest hugging them. "Where are you guys?" She whispered burying her face on her knees sobbing lightly.
.
.
.
Present Mic paced back and forth his his hands on his hips. Aizawa was looking out the window leaning on its frame his eyes scanning the horizon meanwhile All Might was sitting on the couch his hands intertwined together, his thumbs rubbing the back on his hand trying to calm himself.
"Why don't we send midnight to the grounds and flood it with her scent? Maybe (y/n)'s there and we can go find her at least she's asleep." Mic suggested.
"The wind is too strong. It'll just carry Midnight's scent away. That plan may backfire by then we wont be able to do anything." Aizawa said biting the inside of his cheeks. Mic let out a loud audible groan.
"Shit. I forgot about the wind being a factor here." He sighed and walked to the other end of the window both his hands on the frame leaning in.
"The longer we stay here the longer we wont know where she is.." Cementos said his arms crossed.
"She can perform her jutsus too. All that talent in the hands of a child. She could have even walked over that wall hours ago." Aizawa said.
"She can what?" Snipe asked surprised.
All Might sighed deeply. "I forgot she could do that. I saw it during our training. On the day she got burned by Bakugou's explosion."
"If that's the case she could have already left the premise!" Vlad said.
"Not quite." Nezu came in the room with a tablet in han-.. paw? "We received no information that she crossed any of the barriers." He scrolled through the tablet. "If she did both Aizawa and i would have been alerted." Nezu looked at Aizawa who was looking at his phone. "Well?" Nezu asked.
"No notifications." Aizawa said.
"Well, that settles it. She's still well in the UA property." Nezu declared.
"So that's what the wall upgrades were." Snipe said in thought.
"You added sensors on the walls?" Vlad asked.
"Yep! And reinforced them! Now their made with reinforced steel and their thicker and better than before!" He laughed manically.
"Then what are we waiting here for?" Ectoplasm asked.
"Konoha's reply." Aizawa replied turning back to the faculty. "If we go ahead and find her ourselves. The chances are she's going to run away again and she just might escape. If that happens, we wont ever be able to find her." Aizawa said sternly. They all went quiet, Recovery Girl sighed.
"What is it?" All Might asked looking at the school nurse.
"I can't seem to get what she said out of my mind." She said with a sigh scratching her head.
"What did she say?" Mic asked.
"She said 'This is not how we planned to spend our birthday.' but her birthday isn't until _____." She paused. "Could she have a different memory?"
"It may have something to do with the quirk."
"What about a cure?" Ectoplasm asked.
"They're still trying to understand and analyze the reversal quirk." Recovery girl. "Reversal quirks are rare. Thus, there aren't much information about them." She paused. "On the bright side, the police have Reverse who has the quirk. So, it should be easier to solve the problem but the process might take some time." A collected sigh escapes from the heroes lips.
"That would mean she would have to skip the hero license exam." Aizawa looked away.
"Lets just focus on getting her back to normal." All might said.
Aizawa let a breath out. "You're right..."