Issues of Quirk Synergy

by noctisxsol

In her search for the power to surpass All Might, Endeavor turned to a Quirk research lab. Little did she know that this would usher in the age of the Heroine and dating by statistics. What's a quirkless hero to do in a world like this? Make your Vows Izuku. Massive Gender-bends, Deku/harem.

7. People will Believe Anything

Issues of Quirk Compatibility

Chapter 7: Most People will Believe Anything

In her search for the power to surpass All Might, Endeavor turned to a Quirk research lab. Little did she know that this would usher in the age of the Heroine and dating by statistics. What's a quirkless hero to do in a world like this? Make your Vows Izuku; Massive Gender-bends, Deku/harem, Crack with Plot.

Izuku and his class are aged up by about four years, so they are 19-20. Need to get those hormones pumping at full.

Anyway, the gist of this story is that Izuku makes his hero's journey in a world where almost all pro heroes are women, and he's a prime steak slathered in fan-service. Either that, or it's a deep and thoughtful examination of the objectification and empowerment of female super-heroes by the reversal of traditional gender roles. You'll see as it goes. Beware of Crack and other absurdities. But for now, On to the Story!

-U.A. Nurse's Office-

"Isn't it funny how people get embarrassed by people seeing their underwear? It's not embarrassing to be seen in a swimsuit. It's just more clothes!" Ochako giggled at her new friend's antics, and found herself nodding along. "If you don't want people seeing it, why are you wearing it?"

"Yeah! Why don't your normal clothes do everything?"

Izuku held his hands over his face as the two bubbly girls bounced up and down in their shared excitement. They seemed to have no awareness of their own beauty or sexual appeal. Both girls had bodies, and especially busts, that seemed to defy gravity. With his fans he could distract himself by focusing on what they were trying to do to him, but Ochako gave him no reason to push her away. He wasn't entirely certain he could deal with an attractive girl that he couldn't keep at a distance, but Ochako was one of the few girls to treat him normally. He had two very good reasons to want to get closer, and he was doing his best to not count her body as a third. This was a rare chance to have a healthy relationship with someone his own age, but it was also his duty to make sure that the summon wouldn't ruin her life.

With that thought in mind, Izuku managed to squeak out a rebuttal. "Umm, underwear is important because its less embarrassing that being seen naked, and it can support your… um… bouncy parts so it's easier to move."

Both girls took up mirrored thinking poses. Sylph finished her thought first. "Nope, still don't need it. I'm a spirit; the only people who can see me are people I don't care if they see."

"Sylphie is all the support I need! You'll help support me too, right Izu?"

Izuku blushed at the mental images and prayed for a distraction. He never learned to be careful what he wished for.

The door opened and twin nurses rushed in to start fussing over the boy. "We were so worried!" "Are you okay?" "Does it hurt anywhere?" "Let's get a blood test to make sure nothing's wrong!" "We were crying!"

Recovery Girl hobbled into the room. "Blanka! Fillis! You forgot your bags! Your quirks can't do everything for you."

The twins backed off with matching pouts. "We're big girls now Nana." "You have to call us by our hero names!"

The woman gave a grandmotherly smile. "Alright. Recovery Twins Clear and Heal, get to work! We need blood and synergy tests for both!"

The girls smiled and took three steps toward Izuku, then paused in contemplation. They looked at each other, at Recovery Girl, then went to help Ochako onto the examination table.

Izuku leaned back to wait for his turn with a smile. "They purposefully didn't treat me first. They can put aside their feelings and work as professionals… they've really grown…"

He had gotten to know the twins after his idol career had taken off almost ten years ago. His dad quit his old job and instead used his experience in sales and marketing to become Izuku's idol manager. The first thing he did was to move his family into a special gated community for heroes and other stars located just outside U.A. The second was to hold a block party/concert to introduce everyone to him.

The party certainly drew attention, especially from all the heroes' many daughters. One thing led to another and Izuku got a cut on his face from shrapnel inadvertently launched by Katsu's explosions. Blanka and Fillis were the ones to break the fight and treat the boy.

The twins were living next door with their grandparents while the parents acted as traveling support heroes. Blanka and Fillis were a year older than Izuku and ended up becoming older sister figures to the boy. The emotion was reciprocated with the addition of incestuous undertones, much to Katsu's explosive dislike.

Recovery Girl's frustrated cry broke his train of thought. "What do you mean there's no reading? Ough! These new measuring devices are impossible!"

That interesting tidbit was quickly overshadowed by a bigger problem; Sylph was bored and found the sensitive machine interesting; She had leaned over and a personal breeze was making her skirt completely fail at its job as a covering. Izuku tried to subtly get Sylph's attention; he didn't want to reveal the spirit's existence before Ochako did.

A quick glance to the nurses showed that they were occupied fussing over Ochako's bruises and Recovery Girl was focused on the computer screen as it did its scans and tests. No one was watching.

He reached out his hand and grabbed the spirit's fluttering skirt. He gathered his strength and pushed the skirt down to actually cover her legs.

Sylph shot upright with a surprised gasp. She rounded on him with a blush and a pleased grin. "Did ya just-?"

Izuku barely held a straight face at the girl's excitement, and had to fight to keep his voice at a whisper. "I-I-I could see… Everything!"

The girl tilted her head. "But I want you to look. Don't you like it?"

The conversation was turning in a direction he very much did not want it to go. "Umm, hey! You were watching the synergy machine, weren't you? Why don't we make it a couple's testing?" He needed a distraction and suddenly it didn't seem like such a great loss if U.A. lost the machine.

The air-headed spirit was almost vibrating in excitement as he slipped out of bed. He gingerly limped over to the computer. "It might not be calibrated yet. Why don't you try doing a couple's testing? It's less complicated."

Recovery Girl looked at him with an evaluating look in her eye. "Do you know something about this, Midoriya?"

"I've just had my synergy tested enough times to know what can go wrong." He held out a finger with an embarrassed grin. "Sometimes a tester would intentionally erase the calibration so that she could do a couple's testing with me."

The woman gave a grumpy huff, but still went along with the idea. She pricked him and soaked the testing strip with his blood before ushering him onto the secondary scanning table. The spirit watched with sparking eyes as the machine went through an unnecessary and flashy sequence of spins, scans, pokes, prods, mushing and massaging to disguise a long string of boring calculations.

A happy chime signaled the completion of the analysis. The twins paused in applying their bandages, and Ochako especially perked up. No one made any sound as they strained their ears to catch the machine's analysis. The grandmother checked the reading and almost fell off her chair. "This can't possibly be right. Specific compatibility for this couple is over maximum? The machine goes into the thousands!" She fixed the boy in her glare again. "Izuku, what do you know about this?"

The boy in question was just as shocked as everyone else. He froze as he tried to process what might have made the change. "Did the vow do this? It did bind us together, so that might explain it. Katsu refuses to get her synergy checked, so I don't know if that was really a part of it. Is it just her quirk? Complex quirks always tend to have higher specific synergies with the quirkless. Is it because All Might-"

"Izuku." A poke broke his train of thought. "Izu." Sylph was right in front of his face, slowly moving from poking him to molesting his muscles. "Hey Izu, is that good thing? Are we compatible?"

Izuku could barely keep himself from reacting and giving away the antics of the spirit. His mind raced to find a response that would make sense to everyone watching. "It's good, though, right, having that high of a synergy? If either of us were hurt permanently, then it would have been low or negative!"

All three nurses glared at him. They assumed he was the sole source of everything and was just keeping information from them. Even Ochako's conversation with Sylph was being ignored in favor of silently interrogating the idol.

Sweat ran down the boy's face as half formed words tumbled out of his mouth. His eyes flicked to every corner of the room looking for help and finding none. The twins pressed themselves against him and blew on his ears, sending a blush to his face. "Won't you tell us what you did?"

"I AM HERE-" All might burst through the door with his signature smile. "to check on the students!" Everyone froze to state as the number one hero as he took in the situation. His smile didn't waver as he gave his apprentice a thumbs up, took a step back, and closed the door.

"Phils, did All Might just-" "-give his approval? I think so, 'Anka. And you know what that means." Both twins gained an evil grin as their grandmother shook her head in exasperation.

Izuku paled and raced to come up with something to appease them. "I read that you can boost someone's quirk if you open their third eye to an appropriate element by bringing them into a simultaneous state of nirvana calm and mortal terror." The two girls looked at him with a mix of confusion and awe that made him feel like he had to defend himself. "My body moved on its own?" Their faces didn't move. "It worked with Katsu and I was desperate."

The Twins looked at each other. "That sounds like-" "-exactly the sort of thing that would work but no one tried!" "Didn't All Might unlock his quirk with just exercise?" "If it was obvious, everyone would have figured it out already!"

Considering that Ochako was checking her face for a third eye, he would say that they definitely believed him. The idol released the breath he was holding. He had dodged a major bullet there.

-Ambition, Endeavor Hero Agency-

Enjoli pressed the button to play the video again. She saw the green haired student catch the robot roughly half a minute before the windstorm kicked up and destroyed the camera. She pressed the button to play it again, just like she had a hundred times already.

Once again, she cursed the poor resolution and lack of sound on the cameras. She wasn't certain if it was the same boy from the first Quirk Evolution incident or not, or anything he did or said prior to the awakening.

Enryo burst through the door, beaming and waving a sheaf of papers. "I got it!" Endeavor looked at her brother with a glare that silently demanded he explain. "Can I assume you saw the video? That boy is the same one from the last evolution, Recovery Girl passed his statement to me. He had read how to induce those awakenings, and I found it!" His smile faltered a little as he laid the papers down. "Well, I found some translated notes from a lecture that referenced the work in an exploration of theories on the origin of quirks. It's a relic from the Dark Times before heroes, so there aren't many records. From what I can understand, the first quirks were lumped in with other powers that people had awakened under the heading of 'those with the third eye.' The paper supposedly pointed out differences and theorized that the children with quirks could still have their third eye opened to gain more power, though my notes say nothing about how to go about that."

Endeavor stood up in rage. "He must have the original and is keeping it from us! We must seize and interrogate him!"

"Or…" Enryo tried to gently divert his sister, "You could not break the law. You did swear to uphold it, after all."

The woman pouted. "Fine. Tell Shojo to hunt him down and demand power from him. She's been entirely too passive in her pursuits."

The man bit back the half dozen retorts that had formed in his mind. It would be an excellent excuse for the girl to escape whenever she wanted.

-Weekend, Training with Toshinori-

"You know, when you said you were bringing the girls with Spirits and to be ready for a fight… I was expecting to be the one fighting, not just watching."

Izuku grunted as he pulled a furious Katsu off of a giggling Ochako. "You could help, you know."

"I'm your training coach for dealing with villains and reporters, not feuding girlfriends." The skeletal man coughed up a stream of blood. "Think of this as combat experience for protecting a teammate." The man wiped his bloody mouth on his sleeve and pulled out a little cue card to scribble a note on it. He was obviously not very concerned with what was happening, but few were ever as concerned as Izuku. The curse of success is that people trust you, even if you have no idea what you're doing. And successfully saving a second girl's life with only minor side effects definitely counted as a success.

So now here he was, trying to keep his childhood friend from fighting another girl out of petty jealousy without any help or advice from his mentor. "Kaachan, stop! I'm not going to let you kill her after I saved her life! And especially not for laughing when you introduced yourself as 'Queen Explosion Murder.' And doubly especially when you decided I was your boyfriend without asking."

The blonde continued to struggle, whining like a petulant child. "But she's trying to replace me! The ring and the power boost were supposed to be special for me! I'm Best Girl!"

"Actually," the withered man cut in to make the situation worse. "The Harem Laws state that it is the male's right to decide who is in his harem and the Primary Wife. Izuku is even encouraged to look for more girls to join his harem, so long as he introduces her to you before making her official. By law, you have no right to oppose any girl that he's interested in."

Katsu froze. She had always thought that she only had to chase away any girls that came for her spot with Deku, but she never thought about how he might feel about it. She'd have to change course and make sure that he never wanted another girl. She would need to give him everything to make sure he wouldn't stray.

Or she could just double down on her current path, and leave him unable to go looking for another girl.

A moment of consideration revealed a middle path that would leave him with hips too bruised to walk and also very satisfied. She squirmed around to face her boyfriend dead in the eye. "Ravage me."

Izuku lit up in an atomic blush and dropped her to scramble away. "What?!"

The explosive girl could feel her body preparing for the pleasure she knew would come. "I need to show you that I can take care of all your needs." She rubbed herself over the too-tight spandex suit she had worn to impress him. "I'm going to make sure you can't even think about dumping me!"

Ochako ruined the atmosphere by poking her head in between the two. "Can I play too? It sounds like fun!"

Katsu looked murderous. The primal fire of jealousy welled up in her. She tackled the airhead to the ground and resumed the catfight.

Izuku broke.

He started laughing. It was all so ridiculous. Here were two girls, both with the power to level city blocks, but they were wrestling without so much as disturbing the sidewalk under them. Ochako didn't even look like she was taking it at all seriously, and Katsu seemed to be more concerned with scaring her rival than hurting her.

The two girls were opposites, but in ways that were almost complimentary. They were like a comedy duo. The two girls played off each other, and they could be best friends if the right events pushed them together. In fact, that might be just what both of them need.

His hysterical laughter made the girls stop wrestling as they tried to figure out just what was going on. Actually, it made Katsu stop and wonder. Ochako was just laughing along with him.

The crazed boy looked at the two girls with a fanatic glint. "When I'm done with you both, you'll won't even think of fighting each other. You'd better be ready."

The girls willfully misinterpreted his madness as a hidden dominant streak. Both made mental notes to look into self-bondage so they could be prepared. Katsu went a step further and formulated a plan to get some "practice" on the air-headed girl.

The awkward tension was stretched by a new addition. Shojo jogged up to the group without a care for the atmosphere around them. She casually stepped over the two girls on the ground and posed like a child imitating the pretty women on the magazines. Any chance it had of still being alluring was ruined by her choice of ugly sweatpants and Tee-shirt with Endeavor's face emblazoned on it.

The seconds ticked by in awkward silence. An embarrassed blush slowly grew on Shojo's face. An angry flush grew on Katsu's face. A confused look grew on Ochako's face. Toshinori was barely holding back his laughter. Izuku really didn't know what to do with the whole situation.

Finally, Shojo broke the silence. "Do… Don't you want me…?" Her voice was the sound of cracking ice.

The boy's white knight complex kicked in and he held the girl in a loose hug. "You tried…" He really didn't know how to comfort a girl with self-confidence issues. "The clothes look ugly, and I can't lie, but she needs some kind of compliment, and she was really sexy in a swimsuit, but I can't say that because I'd sound like a pervert, but it's the best compliment I can come up with and her skin is soft and I want to get to know her, but I don't want to drag her into my problems-"

His rambling was cut off when Shojo pulled him into an even deeper hug and made sure to intentionally press and rub herself against him with a matching blush. She had certainly caught enough to be able to repay him as well as she understood. That's what she thought healthy couples did. "I think you look better naked too. I'd be willing to strip if you are too. I'll be yours and help you just like you'd help me."

A crackle of explosions drew the boy's attention. Katsu was glaring at the new girl with an even greater hatred than she held for Ochako. Izuku didn't know if that was good or bad, but it just might be the start of the friendship for the two spirits. "Would you like to join us for a workout, Shojo? I'm sure the girls will like you." They'd fight whether he was there or not, so he may as well try to regulate it. Good or bad, he had to at least try and make them friends.

-First Day of Class, U. A.-

Izuku stared at the crowd of reporters and fangirls camping in front of the school's gate. He had managed to stay a step ahead of the media since he had saved Ochako, but it looked like he would have to face the questions today.

He gathered his frayed nerves and walked toward the throng of fans. There were plenty of dyed green heads in the crowd. If he looked like he belonged, he might be able to pass through the crowd unmolested.

He made it about three steps before he was recognized and swarmed. Microphones ringed him in and a second layer of autograph seeking fans made escape impossible.

"Izuku, how did you catch that robot? It had to have weighed over twenty tons!" "How do you plan to keep up without a quirk?" "Can I shake your haaaand?" "I love you!" "I want your baby, baby, baby! OH!"

The idol stared at the swelling crowd in disbelief. He had never seen his fans and the media in the same place without fighting before. Apparently getting a scoop from him was more important than their mutual animosity. "I didn't do anything all that interesting. The building held most of the weight. Ochako was the one who did the most damage-"

More reporters pushed their way into the ring. "Are you dating that Ochako?" "Do you know what caused that storm?" "Did you have the sex yet? I'll let you practice with me."

Izuku recognized the signs. He wasn't going to get to class unless someone helped.

Then a miracle happened. A bushy green head was seen bobbing through the shadows at the edge of the crowded plaza. He recognized the trick. Tamako always wore the look to his concerts after she saved him a few years back. It was a little joke between them. She said that his hair was like a bush, and even proved it by fooling a number of fans with her emerald foliage. She offered her support with a shaky thumbs up.

"Oh no! Don't come over here Izuku! You won't be able to escape from the crowd!"

They took the bait. "Look! It's Izu!" "We got fooled!" "After him! This one's a decoy!"

The boy let out a relieved sigh as the crowds surged past him. Tamako could take drop her leafy transformation anytime and escape. He just had to act casual and not attract any more attention back to himself.

His calm rapidly disappeared when he felt hands grab the skin of his thighs. He started sinking down through his shoes and into the ground. Instinctive fear seized him for a moment, but it was only a moment. This wasn't his first time being saved by the Big Three of U.A.

Miori's head popped out of the ground. "All Might told us to take care of you and make sure you could get on campus without problems. I'll get you inside the walls, and Nejire will take care of your clothes."

The blonde sank back into the ground and Nejire gracefully landed and grabbed his pants with a smile on her face. "I'll leave these in your classroom, so you can find them!"

"Wait! Miori's only taking me-" Izuku's thought never finished. In a show of perfect teamwork, Nejire stripped off his clothes at the same moment Miori activated her quirk and pulled him into the ground.

He suddenly wished he had Miori's sheets of hair to cover himself. From experience, there was only a fifty percent chance that Nejire would drop off his clothes before class. And he didn't particularly want to make his first impression on his class naked.

Unfortunately, reality rarely cares what you think.

But sometimes, just sometimes, the universe is just nice enough to give you what you want. And Izuku couldn't hate his life because of that.

-with Tamako-

"Alright Chicken, we've got Izu safe. You can drop it whenever and get back to your patrols." Nejire's voice buzzed in Tamako's earpiece. The Manifest girl raced around a corner and released the transformation just in time for the horde of reports to catch up and surround her.

"Where did he go?" "Look around, there must be a secret passage somewhere!" "He can't have gone far without a quirk to help him!" Eventually they turned their attention to a very nervous Tamako. "You there. Izuku was seen entering this alley. You must have seen where he went."

She turned away from the crowd on instinct. "They want to know where Izuku went. What do I tell them? That All Might swooped in and saved him? That he's secretly All Might's apprentice and has learned to copy his strength?"

"ALL MIGHT AND IZUKU?! OH! MY! DADDY! There were rumors that the two were seen together but I thought that was just Sakura making things up. Everyone knows that All Might is a huge fan of Izu, who isn't after all, so it always seemed more likely he just wanted an autograph. But if you say he it's true…" The reporter shoved the microphone closer to her face. "What's your opinion? Mighty Izuku: Daddy? Or Master?"

"I'm pretty sure he's more vanilla."

The reported looked down with disapproval. "Don't try to project your fetishes onto my precious Izuku, you pervert. I bet you think he'd want to hold hands too, don't you."

Tamako officially hated reporters.

-With Shojo-

There were eighty-seven laws, and regulations that governed vehicular traffic in Tokyo. Most people broke one or two of the laws, but Endeavor was no regular person. She was in the process of breaking all of them.

"What the fuck is she doing!?" Katsu was in the backseat with Shojo and Ochako, all three fruitlessly trying to undo the knots on their blindfolds.

Shojo tried to burn off her blindfold, but found it fireproof. "She's been trying to scare me any way she can for about a month. Ignore her." Ice quickly proved useless as well, as the blindfold stayed firm. "Ochako, what are these made of?"

The airhead shrugged, not remembering none of them could see. "I asked the pink haired lady for some blindfolds, and she gave me these. Called them super capture rope or something. All we need to get out is to use acid, melt it at thirteen hundred Celsius, or smash it with a hammer after freezing it. No big deal."

Endeavor had forcibly invited the other two girls to come over after learning that they were the previous cases of evolution. They were spared interrogation by Enryo's intervention, but that left two socially stunted teens alone with an airhead who was in the mood to experiment. Unsurprisingly, the night was mostly led by what Ochako had in mind, and the three girls all ended up in a challenge to see who could keep their blindfolds on the longest.

None of the girls were willing to give up, and kept the blindfolds on all night.

They only realized that they were stuck when Shojo's sisters had tried to take it off her in the morning. Endeavor was forced to drive them after the delay caused by the chaos.

The number two hero adjusted the rearview mirror to glare into her daughter's covered eyes. "Shojo, I will double your training if you destroy such a valuable asset."

Shojo officially hated her mother.

-With Izuku-

Miori deposited him in one of the wooded sections just inside the walls. It would have been the perfect place to redress out of sight, if only Nejire had taken his clothes there. As it was, his two options seemed to be going naked to the classroom or trying to cover up with some leaves. He couldn't even ask for help from Miori since the girl had left for her patrol as soon as Izuku was out of the ground.

He made a mental note to stash changes of clothes throughout the campus like he had with the majority of his exercise routes. He knew things like this would happen again, and he did not need to encourage his fangirls to sexualize him.

But the universe does occasionally throw people a miracle. For Izuku, this came in the form of a familiar voice. "I AM" a blast of smoke pre-empted the end of the catchphrase. "exhausted. Between the reporters and Villains, I haven't had a moment's rest for two and a half hours. I'll need to ask Izuku about why they thought I was talking singing lessons…"

"Probably the same reason people keep asking when you're going to hold a tournament to see who can date me." The hero looked started for a moment before recognizing the voice. "people will believe anything they hear if it fits with their pre-conceived notions." He gestured to himself. "For example, why am I naked?"

The skeletal man looked at his naked and ragged apprentice. "You look like you had a struggle taking down a villain." Izuku waved for him to go on, "-ess?" he was waved on again. "-es? Multiple villainesses tried to kidnap you and you barely escaped?"

The boy sat on one of the decorative rocks and sighed. "That would be a reasonable explanation. But when a fangirls sees that I'm naked she assumes I either have a fetish for exhibitionism, or I stripped the moment I saw her. It's insane. Even the girls that do it call it crazy when they see it from someone else." The aspiring hero slumped. "Sometimes I wonder if there isn't some supervillain secretly controlling people to do these things. I'd have to gather a group of true friends and fight to the heart of the city's unconscious desires to kill a god level villain." He laughed at himself. "But that's a scheme that belongs behind a television. As if any villain could hide from All Might in reality. I must be letting this all get to me."

All Might placed a hand on the boy's shoulder to hide how close his words had fallen to truth. "It is the job of a hero to defeat villains, no matter how impossible they seem. We must simply force ourselves to go beyond 100% and past the impossible! A real hero will always find a way for justice to be served! That is what it means to be the symbol of peace! That is what it means to go PLUS ULTRA!"

The hero's inspiring shout sent a flock of birds flying from the trees, and likely attracted attention neither of them particularly wanted at the moment.

The buff man coughed into his fist. "I'll bring you in through one of the hidden passages. We should have spare uniforms in the teachers' lounge so long as Midnight didn't steal them all again." The man coughed again. "Don't make this a habit."

Izuku stared at his hero and inspiration. "Addition for All Might's summary. Has only two modes as All Might: Spontaneous inspiring speeches, and awkward spontaneous floundering. Could actually be one and the same. More research required."

Izuku hated that he still found that cool.

-Chapter 7 end-

Writing a master's thesis is hard and annoying work. It's taken up most of my time, so I haven't been writing much. But here's your new year's gift, I hope you enjoy. Next chapter will be the first days of U.A. and interactions with classmates. Should be fun.