AN: Update rate is currently 3-5 days probably, on account of college and my 2 jobs keeping me pretty busy (graduation this May can't come fast enough lol).

"Mom, are you nervous?"

Inko Midoriya nearly jumped at her son's question as she gazed past the gates surrounding U.A. They had been about to walk in when she stopped in complete awe at seeing the school for the first time. It was huge for a high school, that much was obvious, and the security was state of the art. The grounds went on for miles in nearly every direction. She had known her son had achieved something amazing by making it into the number one hero program in the world, but actually seeing the place in person versus a picture online made it all the more real.

"Maybe a little bit," she admitted. "I never realized just how huge your school was."

She followed her boy past the entryway, the two of them making their way to a series of tables stationed just inside the gates. It was at these tables Ectoplasm had his clones verifying the visitor's identification and checking all of them in. Inko handed her ID to one of the pro hero's clones, and Izuku glanced around while they waited for her to be checked in.

U.A. campus was packed despite the open house only starting roughly ten minutes ago. Business Course, General Education, Support Course, and a few familiar faces from the Hero Course could be seen showing their parents around the grounds. Izuku noticed with a small smile that Shinsou was among those outside. The purple-haired general student was chatting easily with who Izuku assumed to be the boy's parents. Izuku began to wonder what quirks his parents had as the trio made their way inside the building, effectively distracting him from the families approaching him and his mother from behind.

"Deku-kun!"

At the sound of the nickname, Izuku turned around with a large smile on his face. Uraraka and Iida, along with who he presumed to be their parents, gestured for the two greenettes to join them away from the check-in table.

"Uraraka-kun, Iida-kun!" He said joyously as he and his mother made to join the other two families. "I guess you were right about being the first ones to meet my mom. Anyway, this is my mother Inko. Mom, this is Uraraka and Iida."

"It's nice to meet you, Midoriya-san!" The two students greeted enthusiastically. Iida even stuck out his hand for a handshake, something he viewed as the proper way to introduce one's self to someone.

"It's a pleasure to meet my little Izuku's friends," the older Midoriya responded kindly while shaking Iida's hand. "He's sure told me a lot about the two of you. Iida, he goes on and on about how fast you are with your engine quirk, and he never misses a chance to commend your leadership skills. He also talks a lot about how great you are at martial arts on top of your gravity quirk, Uraraka. And let me just say you're even cuter than he described you."

"Mom," Izuku protested. "You said you wouldn't embarrass me."

She waved off her son's whining with an eye roll. "I'm not embarrassing you, Izuku, although if you want me to I do have those pictures of you from preschool in my purse…" The look of horror on his face made Uraraka and herself giggle before she went on to speak to the two kids. "Anyway, Uraraka, Iida, you two are the ones that walk home with Izuku, right? You've been such good friends to him. I wanted both of you to know how much that means to me," she said with a small sniffle, finding herself worked up with gratitude. "I've been meaning to thank you both for looking after my precious little Izuku!"

Uraraka smiled sheepishly, a blush lighting up her cheeks as her dad nudged her knowingly. "You're welcome, Midoriya-san, but it's really no trouble. He's our friend."

"That's right," Iida added. "Although, in all honesty, all of Class 1-A looks after one another. Midoriya-kun has many friends and classmates looking out for him just as he looks after us."

Inko found herself wiping away a stray tear. "That means the world to me, you two. It really does. Now, would you mind introducing us to your parents?"

As far as introductions went, it took over an hour for Inko to meet everyone in Class 1-A's families. She was also introduced to the Shinsou and Hatsume families in between. When the halfway point of the open house was reached, however, and the U.A. campus was at its busiest, there was an announcement over the intercoms for students wishing to introduce their parents to their homeroom teachers to make their way to their homeroom classroom for a group introduction. Izuku was glad for the arrangement, because he'd lost track of most of his friends a while ago.

"Your homeroom teacher is Eraserhead, right? An underground hero?"

"Yep! He's pretty amazing. You should have seen him in action at the U.S.J. and during the final exams. He's practically a sleepy caterpillar by day, but a kick-butt ninja at night."

"What about Toshinori? He's a teacher, but we haven't come across him all day."

Izuku rubbed the back of his neck nervously. "Oh, well he works in the office when he's not teaching due to his poor health, so if we don't see him he's probably either busy or taking it easy today. Being around so many people might wear him out quicker than usual. We'll get to see All Might by the end of the day though. He's supposed to be here for the last hour of the open house."

Inko nodded, trailing just behind her son as he escorted them throughout the building until they were in front of the large door leading to his classroom.

"Why is it so big?" She asked curiously.

Izuku merely shrugged, about to voice his theories when the door opened to reveal Aizawa in all his baggy-eyed glory.

"Hurry up, Midoriya. I want to get my introduction over with as quickly as possible so I might actually have a change to speak with everyone's parents. At this rate I'm not going to be able to get a nap in until tomorrow morning."

The green-haired student assured him they were just about to head in. With a quirky smile he led his mother into the classroom where everybody else was already gathered.

All things considered, Aizawa hadn't said many words at all. On the other hand, what he had said held quite a bit of weight.

It started with a basic introduction. Within the span of five minutes he went on to praise his class as being the most promising class he'd ever had the pleasure of teaching, which filled the students and parents with some well-deserved pride. From there he made a point to assure the parents that their children were being well looked after and would be trained to become the best heroes they could be. By the end of his speech, which hadn't lasted longer than six or seven minutes, the class was buzzing with an air of positivity. It was partially because of those happy feelings being exuded that what was about to happen next would catch them so off guard.

Like most moments just before a life changing event occurred, Izuku was unaware disaster was just around the corner. Literally.

Currently he was spending his time oblivious and amongst friends. Todoroki's mother was in an avid discussion with Inko and Mitsuki about their sons' performances in the sports festival from a few months prior, and the rest of Class 1-A's families were all gathered in their usual classroom introducing one another to the parents. From where he stood with Uraraka, Iida, Todoroki, and a fuming Kacchan (he wanted to get his mother away from everyone before she had a chance to embarrass him), Izuku could see Jiro's parents talking to Yaoyorozu's mother while Kirishima, Kiminari, Mina, and Sero chatted with each other's families. He couldn't help but laugh when he overheard them gushing proudly about the four of them being the founding members of the Bakusquad, to which Bakugo overheard and decided he needed to "knock some sense into those idiots".

"Hey, Uraraka-kun, Iida-kun, Todoroki-kun." Izuku started as an idea struck him. "Do you think your parents would be up to getting an early dinner together after the open house is over? We don't have to go anywhere fancy. Honestly, I could just go for some ramen or rice dish, but maybe we could go to one of those American fast food burger joints that just opened up in the city? My mom and I thought it might be neat to try. What do you guys think?"

Uraraka's eyes lit up in excitement. "Oh, I'd love that! I can ask my folks once they're done talking to the teachers. They are big fans of the pros that teach here," she admitted with a pained grin. "It's sort of embarrassing."

"It's common to admire heroes like those who teach here," Iida argued before turning his attention back to Izuku. "Anyway, Midoriya-kun, I think that it's a wonderful idea. I'll ask my mother and father about it once they're done talking to Thirteen. Before coming here I had no idea they were in the same class together in high school, let alone that they were old friends."

Todoroki seemed a bit more troubled by the suggestion. "I'm not sure if I can join you guys. Aizawa sensei only got my mother permission to visit U.A., so the hospital is expecting her back by a specific time. If we go with you all to dinner she might get in trouble should she show up late. I don't want to risk it."

"That's too bad. Maybe you can join us afterwards?" Izuku offered. "You two took a taxi here, right? We wouldn't mind waiting until you got back to eat. The hospital isn't too far from where the restaurant is."

"Actually," Iida broke in before Todoroki could answer, "my parents drove us here. There is plenty of room in the car for us to bring the two of you along. We could drop your mother off, let you say your goodbyes, and meet everyone for dinner at the designated location all before the others arrived on account of them having taken the train. It would be no trouble whatsoever."

Todoroki seemed taken back, as if he hadn't expected someone to reach out to him with such kindness. It took him a moment to realize this was probably part of the whole "being friends thing" he was still getting used to. Once he understood that he let himself smile softly at the offer.

"Thank you, Iida. We'll gladly take you up on your offer so long as your parents are fine with it."

From there the four of them began discussing American cuisine, Uraraka looking up what kind of food the restaurant served when Izuku overheard someone say his mother's name. It wouldn't have caught his attention like it did if said voice didn't sound so unnerving.

"Inko? Long time no see." Izuku spun around curiously just in time to watch the newcomer show off a charming smile, but it instantly rubbed him the wrong way. Something was off about it. Was it fake? Either that, or he wasn't smiling out of joy.

Inko seemed perplexed the man knew her name and spoke to her like an old friend, because she had no idea who he was. Even as she took in his short black hair, green eyes, and tall, suited build she couldn't remember meeting him before. "I'm sorry, but have we been introduced? I can't seem remember your name. Are you one of the kid's fathers?"

It was at this moment Mitsuki stared at the stranger in suspicion, her red eyes flashing with unease when the man let out a disconcerting chuckle.

"I know it has been a very long time, but you don't recognize when your own husband is standing in front of you? I'm hurt, Inko, I truly am."

Like a switch had been flipped, Izuku frantically whispered to Iida for him to get All Might or one of the other teachers. He hadn't had a chance to tell any of his friends about the news concerning his father, but the class representative seemed to understand something was wrong. While Inko took a step back from the apparent Hisashi, the engine-quirked hero in training nonchalantly made his way out of the room before taking off to find a teacher. He'd have to apologize for running in the halls later.

"Hisashi? Y-you can't be him. Hisashi doesn't exist."

Izuku moved so he was directly in front of his mother as she spoke. Getting in between her and the so-called Hisashi, this made the man's attention fall on him. Around them some of the Class 1-A students began to realize something was going on due to the protective display their classmate was showing. The fact there was a scowl on the usually cheery boy's face was what really set alarms off though.

"Izuku, my boy, it's nice to finally meet you. You're a couple months away from being sixteen, aren't you? You've grown up so much while I've been away."

"Shut up," he retorted harshly. Beside him Uraraka seemed stunned to hear him speak like that. "You are not my father. You're an imposter. There is no Hisashi Midoriya, so why don't you tell us who you really are and how you got in here?"

The anger in his voice startled him almost more than his mother and classmates, but he couldn't bring himself to think it was unnecessary. This man had to know messing with his mother and him like this was not okay.

Hisashi shook his head dismissively, pulling out an ID from the pocket of his dress pants. He held it up so Izuku could clearly see "Hisashi Midoriya" printed alongside his picture.

Izuku wasn't having it.

"An ID is easy enough to fake," he said with a glare. "Did you just come here because the police figured out the account in your 'name' was caught up in illegal activities and shut down? Or were you scared because they are looking into your real identity, since the one you used to marry my mom was a lie? Either way, you're not my father. And you made a really stupid decision to come to a school taught by pro heroes."

"Actually, I believe I've made a wise decision, my boy. You'll find I don't make many choices without careful calculation."

It was silent in the room for a moment, all conversation having quieted a few seconds before he'd been done speaking. The quiet didn't last long, however, because suddenly an alarm was going off that caught everyone off guard.

"Looks like my successor is right on time," the man spoke just as his form shifted before everyone's eyes. Izuku, along with everyone else in the classroom, looked at the intimidating figure standing where "Hisashi" had just been. They took in the malicious grin and ruined face with looks of horror. "And I suppose you were right, Izuku, when you said there was no Hisashi Midoriya. It's always been me all along. Hisashi was just an alias; however, I am very much your father. That is the undeniable truth."

Timing couldn't have been better for the villain as he noticed a serious-looking All Might enter the room just to freeze with shock and anger at seeing his enemy's face.

"All for One."

The villain scoffed at the hero's show of bravado, already tired of his enemy's demanding presence. "Well isn't this just perfect. All Might, you've arrived just in time for the big reveal."

"What are you talking about?" The number one hero questioned, his usual smile showing no hint of making an appearance. "You have three seconds before I send you flying out of this building if you even think about laying a hand on my students."

The villain's returning grin was chilling to say the least.

"I myself have no plans to hurt your students, All Might. What my successor does, on the other hand, is none of my concern. The only one I'll be fighting today is you, but before that I just thought I'd stop by to visit my son during the open house. It's our first time meeting after all. You've gotten to know him pretty well though, haven't you?"

Unease flittered across All Might's face. "What exactly are you saying?"

"What do you say, Izuku my boy? Want to tell All Might that you've finally met your father after all this time? You look so much more like your mother, but with a quick DNA test you'll find there's more villain than hero running through those veins."

Izuku was aware of blood roaring in his ears as he took a step back, his mother's hand catching his shoulder as she worriedly called his name. His mind was not making the connection between her words and him though. All he could focus on was the man that was his mentor's greatest enemy telling him that he was his son.

"Like it or not," All for One continued, completely aware of Izuku's internal struggle, "while there might not be a 'Hisashi', you've indeed always had a father. I had hoped you would have stayed quirkless and out of my sight like the rest of my children before you, but like Tomura said you are quite intelligent even if you are annoying. It's a shame you weren't born with a quirk, otherwise I would have surely chosen you as my successor over him, but like the other failures you weren't born ready to take up the mantel of hatred like Tomura was. The doctor confirmed it the moment he told your mother and you about your quirkless status. As it stands my current successor will do just fine. He's the one who planned the attack going on outside this building right now, after all. He's also looking forward to killing you himself."

The air became charged as the students in the room tensed for a fight, screaming having made its way from outside early on in his speech.

"That being said, it was interesting to meet you for the first and last time, my boy."

With a condescending wave, All for One's form became surrounded by a mass of black liquid. He turned to All Might once again just before he warped out of sight.

"I'll be waiting for you outside, All Might. You have one minute to find me before I start window-shopping for some useful quirks. The quirkless population could always be a bit higher."