Chapter 1: Envy
-Musutafu City-
In a world with a superpowered population, where eighty percent of the people of the world had astonishing abilities—commonly known as "Quirks"—there was the city of Musutafu, Japan.
And in this city, there lived a teenage girl. Her name was Izumi Midoriya, and as far as those around her were concerned: she was far from normal, however. It wasn't just because of her quirk, either.
The young Izumi was actually the descendant of a race long thought to be either extinct or just myth and legend. The people in question that she came from were the mighty and gargantuan humanoid behemoths known as the Jotun race—more commonly known as the Giant race.
This didn't show visibly, but the signs were there to those who could spot them. That didn't mean she was as tall as an office building on the regular, mind you, but she did display an abnormally high amount of strength and durability. In fact, it was noticeable, even when she was still in elementary school.
This level of strength was what made her 'abnormal' since things like that didn't show up until a person's quirk manifested at age four or in rarer cases at birth.
But what really made her abnormal was the quirk she manifested at the age of four. This quirk was known as Creation or Mother of Creation, which allowed her to manipulate any kind of earth with unreal levels of sophistication and power. It even seemed to allow her to turn her body into hardened steel if she stood still.
This is the story of Izumi Midoriya, or as she was called by her peers: the Serpent Sin of Envy.
Currently she was running to Tatooin station to go to her middle school, which allowed those around her to see what she looked like. She was a fair skinned maiden, who could be described as "lovely, and beautiful". She was around 5'5" with emerald green eyes and short length unkempt green hair which had an All Might winged pin in it. She also had a well-endowed and curvaceous body—having a pair of ample DD-cup breasts and a heart shaped ass—and her facial appearance is relatively childlike. The tattoo she had, which is of the Serpent, was located on her left outer thigh.
As she approached the train station, she heard the telltale signs of fighting, causing her to look up and see a villain using his quirk. This made Izumi sigh since she realized she was going to be delayed, but she took out her notebook as some heroes arrived on scene.
"Now how could I use those moves with my quirk…?" She wondered as she wrote down the moves and other notes and tidbits about the heroes on the scene.
"I know that look." A man next to her stated. "You're a fangirl!" He said with a grin, making the girl giggle as she scratched her neck.
"Yeah…" She nodded as she continued writing as Kamui Woods came on the scene.
"Well if you're reading notes for learning, then you've got the right idea. Keep it up, fangirl." The man told her.
"Will do." Izumi nodded as she watched Kamui get his special move ready.
"CANYON CANNON!" A female voice yelled as a giant woman delivered a flying kick to the side of the giant villain's face. "No need to worry about this bum anymore, boys!" She said as she held the villain down. Many men started taking pictures of her while Izumi glared at the giant woman enviously.
'Hmph, I'll get a figure like that one day!' She thought with a small pout. "Anyway…" The girl said as she walked away.
(Later)
Later on at Izumi's middle school, the girl was sitting in class with her peers and their teacher was talking about future career aptitude tests. Which were important for knowing what they wanted to do with their lives.
"Now, I could pass out these career aptitude tests…" The teacher trailed off before throwing said tests into the air. "But why bother? I know all of you want to apply for the hero course!" He exclaimed. Everyone started cheering loudly as they used their quirks, sans Izumi, who was staring at her childhood friend, Katsuki Bakugo.
"Hey teach!" The blondie called. "Don't lump me in with these bunch of losers. I'm the real deal, but they might just get work as the sidekick to some busted D-lister, ha!" He laughed.
"You think you're better than us Katsuki?!" The kids yelled.
"Let's go, I'll take you all on!" The blonde retorted.
"Ah yes, Katsuki Bakugo. You're applying to UA, correct?" The man asked as he looked at the list.
"The national school?!" A girl questioned.
"That place has a 0.65 acceptance rate, it's impossible to get in!" Another boy exclaimed.
"That's why it's the only place worthy of me! I aced all the mock tests, so I have the best chances of getting in! I'll be more popular than All Might himself! And be the richest hero that ever lived. Everyone around the world will know my name, and it all starts with UA High!" The Pomeranian yelled as he jumped on his desk, smirking confidently.
This made a metaphorical Cupid's Arrow strike Izumi in the heart as she held her cheeks as they turned red.
'So cool!' The girl thought to herself.
"Oh, Izumi Midoriya. You're applying to UA as well, correct?" The teacher spoke up, snapping the girl out of her daze and causing Bakugo to freeze up.
"Uh… Yeah, that was the plan I had. More or less…" Izumi nodded with a nervous chuckle. She then looked at Katsuki who stared at her. "Guess that means you'll need to get through me, huh Kacchan?" She said with a silly grin, which made the blondie blush as he looked away.
"Man, if Izumi gets into UA, she'll be unstoppable." A random student sighed.
"Yeah. Especially with her quirk. She'll be a monster!" Another said in agreement.
"Doesn't matter to me, a rival's a rival, no matter what their gender is." Katsuki scoffed, still blushing. "So don't think I'll go easy on you just because you're a girl." He added as he looked at the giantess.
"Good." Izumi giggled before she smirked at him. "That's just the way I want it." She added, her smirk still in place.
(Later)
As Izumi started packing up her things in her backpack, she suddenly found herself pressed up against the classroom wall, with a well calloused hand slammed against the wall on the left side of her head.
As the descendant of the Giant race looked up at whoever just committed to the slightly cliche 'Wall Slam', she found herself looking into the red eyes of her childhood friend, Katsuki.
"Something you need, Kacchan?" The girl asked.
"Yeah. I'm giving you free advice." The boy replied before leaning into her ear. "You better train till those bones of yours break and get into UA for it. If you don't, I'll kill you." He whispered into her ear, causing the girl to shiver from the feeling of his breath on her skin.
"No you won't." She whispered, nibbling on his ear lightly. This made him jump back with a surprised look on his face accompanied by a blush.
"Stupid nerd!" He snapped, making her giggle. The blonde glared at the green haired girl before he sighed before he looked away again. "You better not do that with anyone else. I'm warning you." The boy stated before he walked away without another word.
With a light giggle and a blush when she realized what she just did, Izumi began walking home. As she did, she ended up passing through a tunnel beneath an overpass. When she passed by a manhole, she failed to hear the sound of moving slime.
"Hmmm?" She said as a shadow was cast over her and then loomed, and what she saw was a villain made of green slime. "Oh shit!" She gasped in shock.
"A meatsuit. Great timing." He burgled before he grabbed Izumi, who started thrashing in an effort to escape.
"HELP! STRANGER DANGER! I NEED A BETTER ADULT THAN THIS ONE!" She screamed as loud as she could.
"Hey!" The sludge man exclaimed indignantly.
"Get off of me!" Izumi yelled as she slammed her fists against the wall beside her, which caused several stone pillars to slam into the creature's face, and squashed it to the wall.
The sludge villain shouted in surprise as he was suddenly pinned to the wall. It was unexpected, but he easily managed to work around it.
"Oh come the fuck on—MMMPH!" The giantess yelled before the villain forced its goopy tendrils deep into her mouth and down her throat, while a few others were stroking, measuring and 'admiring' her more private areas, as if trying to see if she'd be the perfect fit.
"Hmm… A little tight in some places, but you'll do just fine in hiding from him." He concluded. Izumi, meanwhile, felt incredibly violated and furious right now. No one caresses her body except one person! NO ONE!
"GTT OMMMPH!" The girl yelled as she stomped her foot and several spikes shot up from the ground and forced the slime monster to flatten on the ceiling. "Circle Rock!" She yelled as she grabbed the wall next to her and twisted it into a circle, causing a stone dome to form around the villain and seal him inside… However she was still covered in slime. She looked down at herself and 'tsked' before she started scrabbling the slime off of her body by doing a pirouette.
Right as she finished, the manhole cover was suddenly blown off, and someone leaped out of the sewers.
"There's no need to- … Um, am I late?" The man asked as he noticed what happened, getting Izumi's attention, the girl still dusting herself off.
"All Might?! What're you doing here?!" Izumi questioned in shock before looking up at the dome. "Yeah, I already handled the guy. The pervert had the audacity to start groping me as soon as he had me. Which pisses me off because I'm trying to save myself for someone!" She snapped with a disapproving whine.
"Um… Right." All Might nodded awkwardly. "Can you try to funnel him into this bottle for ease of transport?" He asked, holding an empty soda bottle up. Izumi looked at it and nodded.
"Yeah. Take the cap off and hold it out." She instructed. The hero did as told before, to his amazement, Izumi crafted an earth tube from the dome to the bottle and the villain started flooding into it, and didn't look happy about his new confines. Once the last of him was in the bottle, All Might quickly put the cap on.
"Impressive use of your quirk. The control you displayed was astounding." The man complimented.
"Thanks… Oh god—here comes lunch again." The girl gasped as she held her stomach and her face turned green. Immediately, she started puking up her lunch while the hero patted her back comfortingly.
(A few minutes later)
"You okay now, Young lady?" All Might asked as he patted Izumi's back while she rinsed her mouth out and coughed.
"Yeah… I'll live." She groaned. "And thanks for showing up." She added before pulling out her notebook. Already knowing what she wanted, All Might whipped out a pen and signed the notebook the second Izumi opened it. "Ahhh, thank you so much!" She squealed in delight.
"You're welcome. Now, if you'll excuse me, I've got places to be!" The man said as he leapt away, however, as he did something fell out of his pocket and landed at the girl's feet.
Looking down, it looked to be an itinerary of some sort. Realizing that the man was most likely going to need it, Izumi quickly picked the book up and started chasing after him by creating stone stepping poles.
Hearing the sound of earth moving, All Might turned and saw Izumi chasing him via stone stepping poles, which shocked him considerably since she was gaining on him. He also briefly noted the poles receding back into the ground.
"Is that really necessary?! I love my fans, but that's too much!" He exclaimed over the winds.
"But you dropped this itinerary!" She called back as she held it up, causing him to check the pocket it was in and cursing when he felt nothing there.
"Thank you for trying to return it! Give it to me when I land!" He called the giantess. As they landed, the girl quickly handed him the book as the man respectfully bowed. "Thank you again." He told her.
"You're welcome." Izumi nodded as he turned around. This was when she remembered something. "All Might, there's something I've been wondering for a long time. You see, I've always been seen as abnormal because I didn't get my quirk until I was five years old. And every year I had to wait, I enviously looked at my friends and classmates and always wanted what they had… And l'd acted out because of it." She sighed, looking down. "It's why I got my nickname, "The Serpent Sin of Envy". But that makes me feel like I won't be able to act as a hero." She added. "Do you think… my assumption is right?" The girl asked.
Throughout her explanation and question, All Might's body started steaming. By the time she was halfway through it, he was completely concealed. When Izumi didn't get an answer and took notice of the steam cloud, she grew worried for the No. 1 Hero.
"Uh… All Might—WHOA!" The girl gasped as she looked up and saw the steam as it dissipated and saw a man standing there, who looked like an emaciated All Might. "A-All…. Might?" She asked in shock.
"Yeah, it's me." The man sighed, coughing up blood which worried the Serpent Sin. "Ya know those fat guys by the pool who inhale deeply to look buff? I'm like that." He explained.
"B-but… How'd this happen?!" She asked in shock. The man sighed as he lifted his shirt up. "Oh my god…" The giantess gasped as she saw an absolutely horrendous injury on the man's side.
"Nasty huh? This happened to me five years ago. My respiratory system was basically destroyed and I had to get my stomach transplanted. The surgeries took a lot out of me, and I likely won't be able to regain all my lost muscle tissue." He told her. "Now I can only be All Might for three hours at a time now. Rest of the time, this is what I look like." He added.
"Five years… was that the fight with Toxic Chainsaw?" Izumi questioned.
"You certainly know your stuff, but no." The lanky blondie replied, shaking his head. "He got a few good hits in, but nothing severe. This was from another fight, a damn brutal one that had to be kept under wraps." He continued. "If people knew that the Symbol of Peace was hurt in such a way, people would be discouraged and villains would be emboldened." He added further.
"Okay. Yeah, I get that." She nodded as All Might got back up.
"To answer your question, you seem to have a good grasp on your powers and a good head on your shoulders." All Might told her. "But jealously can be an ugly thing, especially for a hero. Though like all obstacles, it can be overcome. So, I think you should try to improve yourself the best you can so that your jealousy won't lead you down the wrong path." He continued. "Take those words to heart and I'm sure you'll be fine."
"... Thanks." The greenette replied after a moment. "I guess this is the part where we go about our days?" She guessed, getting a light chuckle in return.
"Yeah it is. Take care, young lady." All Might said as he turned to leave the rooftop.
"Right. You too—." She said before a massive explosion occurred in the distance. "Holy shit!" Izumi gasped as she nearly jumped out of her skin. Instinctively, she beelined her way to the blast where Death Arms, Backdraft and Kamui Woods were already on scene. When she saw what the commotion was, she froze when she saw the sludge villain… with Katsuki in his grasp.
"Kacchan?!" She gasped in horror as he struggled to get free, causing explosions the whole time.
"You picked the wrong guy to mess with! I'll send you back to whatever sewer you crawled out of!" The blonde yelled as his hands sparked. "LET ME GOOOO!" He yelled desperately as he caused a massive explosion, causing the heroes to jump back.
Tears fell down Izumi's face as she looked at her best friend's struggle against the villain she'd help capture. This was her fault.
"No… no…!" She cried as she shook her head. "You can't die now, especially not since I haven't—!" The girl said to herself before she saw Katsuki look at her, his eyes full of fear and panic.
That was all it took. Without a second thought, Izumi launched into a full sprint toward the villain, using her quirk to make a stone pillar rise out of the ground and into the villain's eye.
"GAH! MY EYE!" He yelled, his grip on Katsuki loosening from the pain. The girl then ran past the heroes despite their protests and started grabbing at the boy.
"Izumi?! What're you doing?!" Katsuki gasped.
"I have no idea! But I know one thing, you're not dying! Not while I have a say!" The girl yelled as she started pulling on him.
"Get out of here! You'll get hurt!" He yelled at her.
"I don't care!" Izumi yelled back, which unknowingly made her best friend's heart skip a beat.
"You little earthbending bitch! I'll kill you!" The sludge man roared as he moved to strike Izumi. The girl was about to erect an earth wall to shield herself, but that wasn't needed since All Might chose that moment to appear and block it himself.
"What the—?!" The three gasped at the sudden appearance.
"I really am pathetic. Telling you how to overcome obstacles, and not living up to my own ideals!" The symbol of Peace said as he pulled both kids away from the villain. "Pros are always risking their lives! No matter what obstacles stand in their way it's their job to overcome them!" He yelled as blood came from his mouth.
"All Might…" Izumi uttered. She watched as the man reared back his fist and readied an attack, which made his target fearful.
"No! Not again!" He exclaimed as he tried to get away, but it was too late.
"Detroit SMASH!" All Might roared as he threw his fist forward, sending out a shockwave that scattered all over the place and freed the Pomeranian.
As the wind funnel rushed up into the sky, clouds started to gather and then it suddenly started to rain, which caused the fires to go out and everyone to look to the sky in surprise.
"It's raining?" Someone noted in surprise.
"His punch changed the weather!" Another added.
"Incredible!" A woman gasped. Meanwhile Katsuki turned to glare at Izumi with his eyes burning with anger.
"What the fuck were you thinking?! Do you have any idea how badly you could've gotten hurt?! Or are you just dumb?" He snapped. "And besides, I didn't need your freakin—help." He added before stopping when he saw the Sin of Envy wiping tears from her eyes as she was still crying. "... Uh, Izumi?" He asked before the giantess hugged him tightly and suddenly smothered him into her chest.
"Do you have any idea how terrified I was when I saw you in that monster's grip?!" She growled tearfully. "I was scared that I'd lose you, you dumbass! There's no way in hell I'd let you die, not when I have the power to stop it and save you!" She cried.
The living time bomb tried to protest, but all his arguments were muffled by the girl's ample bosom. Which the boy had to admit, was exceedingly soft.
All Might looked at the two and sweat dropped, noting that they must've known each other since childhood. Though as he looked at Izumi, he saw something that he'd been searching for.
(Later)
Izumi walked in the sunset's light, having calmed her nerves after letting out her emotions and voicing her fears to Katsuki. She sighed as she thought back to All Might's words earlier, wondering just how far she'd have to do to shed her envy.
"I mean, he did say that I could overcome it if I worked hard. So maybe…?" She muttered to herself, though as she looked down at her chest, her thoughts suddenly turned to the memory of Katsuki burying his face in her cleavage. She blushed profusely at the image, and strangely enough, wanted that to happen again. It felt so right to her.
"Hey, nerd!" The voice of the girl's crush called out to her.
"Kacchan!" The Serpent Sin gasped as she turned around, shuffling nervously as the boy walked towards her. "Umm… Did—Did you need something?" She asked, twiddling her fingers.
"I only came here to tell you I didn't need your help!" The red eyed teen barked before he visibly calmed down. "And… to say sorry for scaring you like that." He added, knowing damn well that the greenette was scared out of her wits.
"K-Katsuki…" The girl gasped tearfully as she hugged him tightly, which surprised him. Especially since she called him by his first name instead of his nickname. After a moment, he hugged her back.
"I'm okay, Izumi. I'm still here." He said as softly as he could while his childhood sweetheart lightly cried into him… Right until she nailed him in the stomach with a punch.
"Don't you ever scare me like that again, got it?!" The giantess snapped as he held his stomach.
"Yeah, yeah." Katsuki groaned as he recovered before patting her on the head. "You be careful too." He told her as he turned around and walked away.
Izumi let out a sigh of happiness as she turned to continue her walk home… only for All Might to appear.
"I am here!" He exclaimed dramatically, causing the girl to jump in surprise.
"What the-! All Might?! I thought you were still being hounded by the press!" The green haired girl exclaimed as she tried to calm her racing heart.
"Ha ha ha ha ha! I stand for justice, not soundbites! I come to aid all those who are in need!" The man laughed before he started flexing. "Because I am—!" He started to say before he suddenly deflated.
"Oh jeez…" Izumi sighed in exasperation.
"Ahem… Young lady, I came here to speak with you about earlier." The man told her, wiping the blood from his mouth. "If you hadn't told me about your life, if you hadn't run into that fight, I would've been a useless bystander." He added..
"What about it?" The giantess asked with a raised eyebrow.
"There are stories of how the heroes of old became great. But they had one thing in common, their bodies acted without them thinking." The blondie stated. "So when I saw you, a young girl with no combat experience and doubts of her own character try to save someone despite her shortcomings—it inspired me to act as well." He continued.
"Nice to know I inspired you." Izumi nodded. "But I can tell there's more to this than there is." She added.
"Yes. You see, I'd been on a long hunt for a successor for awhile now. A fledgling hero with a powerful quirk who can take my place as the new Symbol of Peace." The hero told her. "And as luck would have it, I ran into you." He added.
"Are you saying…?" The girl trailed off in disbelief.
"Young lady, you are worthy of inheriting my quirk." All Might declared, which confused Izumi.
"Wait...Inherit your quirk?" She wondered. "What do you mean by that?" She continued as confusion started crawling into her mind and making a nest in it.
Dragon Emperor0: Hello everyone. Welcome to the second story in my little What if MHA story series where Izuku is reimagined with elements from the Seven Deadly Sins. This is Serpent Sin, and this version of Izuku is named Izumi. She's part giant and a bit of fairy on Inko's side.
ThermalsniperN7: And the pairing should be pretty obvious. It's something that just has to be done. Katsuki is also noticeably different around Izumi, too, as you've no doubt noticed.
Dragon Emperor0: This'll be given more context in later chapters, but let's just say that Katsuki is going to be very stingy when it comes to getting her attention and will definitely throw hands with Todoroki about it if he has to.
ThermalsniperN7: That's right; Katsuki and Todoroki are rivals for Izumi's affections. Get your popcorn ready for when that starts, folks.
Dragon Emperor0: That means you, TodoDeku and BakuDeku shippers. You wanna see a love triangle of your favorite ships so badly? Well here it is, and trust us: It's gonna be a good show.
ThermalsniperN7: See you in the madness!