Toshinori could feel his fellow teacher's eyes boring into his back as they watched the rescue exercise unfold. Aizawa was looking at him with growing exasperation, as if everything that was currently going on was Toshinori's fault.
He could understand Aizawa's confusion; the main screen in their control room was currently depicting his mentor hovering over the city, offering directions to her classmates on the ground, only it wasn't his mentor, only it was-
Toshinori was still trying to wrap his head around what exactly was going on. In the end, though, there was only one thing that he really needed to know.
Nana was alive again, after thirty years of pain in his heart where happiness should have been. Between her and Izuku, Toshinori had more people that made him feel truly valued in years.
That didn't change the fact that this reborn Nana Shimura was extremely confusing to think about.
Not personality-wise, of course; for almost all of the (far too short) time Toshinori had known Nana the first time, she'd been the same indomitable, witty, and mischievous woman he now watched skip across the rooftops of a fake city, searching for mannequins dressed as civilians in need of rescue.
No, it was mostly confusing because Toshinori's lips struggled to form the word "daughter" whenever he was asked about Nana. He had always considered her the closest thing he had to a mother, someone to look up to, to learn from.
The thought of having to be in the position of being learned from scared Toshinori, though not as much as it used to.
After a year of teaching Izuku, Toshinori had finally begun to believe that he might have wisdom to offer the next generation of heroes, even if he was mostly useless when it came to offering advice about the deepening mysteries of One For All.
Toshinori was jolted from his thoughts by Aizawa shouting, "Okay, what the fuck?"
Blinking, Toshinori looked at the screen, and had to bite back a laugh.
Parts of the training city had been deliberately destroyed for today's exercise, including several buildings that had been turned into unstable husks, ready to collapse under the slightest disturbance. This was meant to incentivize the students to be cautious and deliberate when figuring out how to rescue the "victims" trapped inside these derelict structures.
Unfortunately, Young Kirishima was neither cautious nor deliberate. The red headed student had successfully retrieved two mannequins from a four-story tower, only to find out that two of its load-bearing supports had been weakened just enough to cause it to slowly topple when Kirishima kicked down a wall to get to a "victim."
Now, the concrete behemoth started to tilt, headed for where several students had been collecting mannequins into a simulated triage center. There were shouts; none of the students had the capability to prevent the fall of the tower.
Only for Nana to swoop in out of the sky, bracing herself against the side of the enormous mass. Purple lightning crackled around her as she paused for a second and pushed.
With a creaking sound, the building swayed from its path, away from the students. It crumbled into the empty street beyond them with a rumble and a crash, leaving Nana floating over the scene as she laughed.
Aizawa demanded, "All Might, what the fuck did your daughter just do?"
Ignoring the moment of confusion at the word daughter, All Might replied, "I believe she just...ah... muscled the danger out of the way."
Toshinori didn't need to turn around to feel the effect of Aizawa's deadpan glare. The younger hero said, "She muscled a four-story building into falling over. What the hell did you feed that girl?"
"It was already falling?" Toshinori offered weakly.
"That doesn't make it any better," Aizawa snapped, "one problem child with super strength is enough. I don't need to deal with his girlfriend who can muscle buildings out of the way, too."
Ah, Toshinori had forgotten all about that little detail, too. He had to admit, it was an effective lie, largely because it was so believable.
Toshinori had zero clue how he was supposed to act around Izuku, now. What was a father supposed to do when interacting with the boyfriend of his daughter? Was Toshinori supposed to mistrust him, or threaten him, or something else?
Why was all of this so confusing?
For the moment, though, Toshinori just cleared his throat and said, "Um...sorry?"
Aizawa huffed, "You should have been sorry eighteen years ago when you spawned that damn problem child."
Toshinori would have replied to that, probably with confused stuttering, but at that moment, the main screen changed again to show Nana chuck a hardened Kirishima like a javelin halfway across the city to Izuku, who caught him and immediately put the redhead to work clearing out debris from another half-collapsed structure.
Aizawa turned away from the screen and complained, "They don't pay me enough for this bullshit."
Meanwhile, Toshinori had returned to his thoughts. Seeing Nana act like this brought up old memories of her, and the event that had wiped her real smile away forever.
Her husband's death.
Toshinori had known him only from a few meetings; he recalled a tall, kindly man with a ready laugh and an evil grin that always meant something crazy was about to happen. He and Nana had loved each other dearly, even if they spent much of their time apart due to the intense and chaotic nature of heroics in that era. They'd always managed to find time for each other and for their young son even in that mess; it had been inspiring.
Toshinori didn't remember how he'd died; it hadn't stood out among the endless tide of death and loss and destruction constantly being held at bay by a strained, imperiled few.
He did, however, remember what his death had done to Nana.
A few weeks after the funeral, Gran Torino had brought Toshinori by Nana's home for one reason or another.
When they'd entered, the sound of crying had been clearly audible from the other room.
Gran Torino had put his hand on Toshinori's shoulder; he'd started to say, "Now's not the time, kid."
But Toshinori had been young, innocent, and hearing someone he loved crying. He'd shrugged off the warning grasp and rushed towards Nana.
What he'd seen had forever changed his view of heroes.
Nana had been on the floor, crying in front of a small shrine to her husband. Gone was the larger-than-life air, the humor, and the smile. She'd looked broken.
"How could you do this to me?" she'd wept, "how could you leave me? I can't do this alone! None of it! You said you would always be there!"
Nana had leapt up in mad fury, and been about to grab the photo of her husband off the shrine when Toshinori, scared of seeing her like this, said, "N...Nana?"
She'd whirled, and her eyes had gone wide when she saw Toshinori. Through the tears, she'd grinned and said, "Hey, kiddo. How are you?"
Even then, Toshinori had known that that smile was fake, a thin veil draped over a gaping wound. But he hadn't pushed it; sometimes he wished he had.
Nana had lived for nearly a year after that day. He had never seen her real smile again.
That was why Toshinori couldn't bring himself to share his knowledge of what she'd lost with Izuku and Nana. Nana loved too deeply, too passionately, to be able to heal from blows like that, and Toshinori wouldn't let her grief ruin two lifetimes.
But still, the guilt of keeping things from his mentor ate at him, doubly so when he realized that he hadn't even told Gran Torino about Nana's return.
The exercise had just ended, Toshinori realized. Well, there was no better time to face the old man than right now.
He pulled out his phone and dialed.
Sorahiko was drinking tea when Toshinori's number came up on his phone.
Picking it up, he habitually snapped, "What do you want, kid?"
Toshinori's voice was subdued, but not trembling like it usually was when he and Sorahiko talked, which was Sorahiko's first clue that something was up.
He still wasn't prepared for the next words out of his boy's mouth.
"Nana is alive, Gran Torino," Toshinori told him.
Sorahiko's cup fell from his hands with a crash, shattering when it hit the floor. Sorahiko didn't even notice it as he gripped the phone tighter.
"Listen here, Toshinori," he hissed, "if this is some kind of joke, it isn't funny."
"It's not a joke. Nana came back from the dead, One For All caused it somehow," Toshinori assured him.
Sorahiko could tell he wasn't lying. Sudden emotions gripped him, a grief so old it had faded into scar tissue flaring up fresh.
His best friend was alive?"
"Where is she?" Sorahiko demanded, "when did this happen?"
"Just a few days ago," Toshinori replied, "she's at UA. But there's something else you should know; it's not the Nana we lost."
Sorahiko felt a pang at that; as much as they'd both been affected by her death, he and Toshinori had both held their own grief close to their hearts, never sharing the burden of it.
"What do you mean?" he asked his old student.
"She's a teenager again. Something about how she was resurrected by Young Midoriya's One For All," Toshinori explained.
Sorahiko thought back the nearly half a century to when he and Nana had been at UA together. They'd met there, become thick as thieves in a time when heroes were closer to soldiers than celebrities. Sorahiko had been there less to be a hero than to learn to fly; he'd always wanted that freedom, but he needed a hero license to be allowed to do it. He and Nana had bonded over a love of the air, of the ability to break free of the bonds of gravity and truly escape into another world.
Nana had convinced him to become a true hero, the way she had been; after her death, he'd lost all desire to continue, but had done so for a few years in order to fulfill her last wish and keep her successor safe.
He'd only come out of retirement for revenge when the bastard that killed Nana started moving again. Now that that threat was gone, he was more than content to stay grounded most of the time.
But he was ready to fly all the way to UA right now if it meant he could see his old friend one more time.
"When can I see her?" Sorahiko demanded.
"We're still trying to get everything settled," Toshinori said, "but tomorrow might work."
"It better," the aging speedster replied, "because I'm gonna be there whether you want me to be or not."
When Toshinori hung up, Sorahiko sat alone in his apartment, thinking of one of the last conversations he'd had with Nana. A day after they'd had it, she'd been dead.
"It's about time you showed up!" Nana laughed as Sorahiko landed on the rooftop.
"Very funny, Nana," he replied dryly, dusting himself off, "why did you want to meet on a windy rooftop at sunset? I'm cold as hell out here."
"Thematic appropriateness," Nana said lightly, "why else do I have this cape?"
Sorahiko didn't laugh; he would have, once, but time had worn both of them down. "What's going on?" he prompted.
Finally, Nana sighed, and her face faded again. "He's on the move," she admitted, "I think he's tracked me down. Two heroes on my usual beat got attacked yesterday; they'll be finding pieces of them in the bay for weeks. He's close, and we're out of time."
Sorahiko nodded grimly. "What's the plan?" he asked.
Nana looked off into the distance, her hero suit hanging off her body; she'd lost too much weight over the past year. She looked gaunt, exhausted.
"There isn't one," she said quietly, "other than fighting him."
Sorahiko looked at his friend; this wasn't like her, not in the slightest.
"That's it?" he said, "you're really just going to charge in? That's suicide!"
Nana didn't respond. Sorahiko got heated.
"I'm not going to let you throw away your fucking life!" he roared, "what about your successor?"
Nana's smile was faint, and her eyes were far away. She answered, "Toshi's already got control of One For All. He doesn't need me."
"Bullshit!" Sorahiko shouted, "that boy looks at you like you're the SUN! Losing you would tear him apart!"
Nana didn't reply for a long moment. Finally, she said, "Toshi's scheduled to be interning with me tomorrow. If things go south, please, get him out of there."
"If I'm going to do that, I'm taking both of you with me," Sorahiko told her, "I'm not letting you fight that fucker alone."
Nana smiled at him, but her eyes were just tired. "Please, Sorahiko," she begged, "promise me you'll keep that boy safe. He isn't ready to get caught up in all this yet."
"I'm going to keep you safe, too," he insisted.
Nana drew herself up again, eyes flashing with a pale imitation of their old spark as she said, "Sorahiko, I've spent my whole life escaping from things while other people bought time for me. I'm done running. If someone has to buy time against that bastard when he finds us, it's going to be me. One For All will keep me safe."
"And if it doesn't?" Sorahiko whispered, barely audible.
"It always does," Nana promised, "one way or another, One For All won't let me down."
Sorahiko sighed, "Fine, I'll keep the brat safe. Don't you DARE die on me, okay?"
Nana nodded weakly, but they both knew she could make no promises.
When she lifted off once more, heading back to an empty home, Sorahiko lingered on the lonely rooftop. He took a deep breath, then started kicking the lip of the building's roof violently, letting out a stream of curses aimed at self-sacrificing friends and grotesque villains and unfair worlds that sucked the light out of the best person he'd ever known.
It was a long time before he was done.
That night, Nana eagerly dragged Izuku to bed, slamming the door firmly behind them as she kept her lips locked against the taller man's.
Izuku happily returned the kiss, pulling Nana closer as her hands started to snake into his clothes.
"Mmmmm," Nana groaned as Izuku broke the kiss to start sucking hickeys into the side of her neck, "you're much more lively today, aren't you?"
Still pressed against her thanks to Nana's firm grip, Izuku came up to her ear to say, "You just looked so hot in that costume, I can't help myself…"
Nana shuddered eagerly at his closeness, but smiled and replied, "I could tell, your mind was like an open book. And you're not apologizing for touching me anymore; good. Remember, Izuku, I love it when you claim me like that. Make sure that everyone knows I'm yours."
Izuku turned faintly red again, but didn't contradict her, either. "So, you want to experiment tonight, right? What do you want to do?"
Nana explained, "Well, the way I see it, we're working our way up to bigger stuff as I get you more comfortable with it. That's an opportunity for me to show you all of the fun we can have with each other. Consider this your education, Izuku."
Izuku shuddered as Nana did exactly what he'd just done, whispering huskily into his ear as she pushed him onto the bed. He stumbled and ended up laying flat on the mattress, while Nana leaned over him with a predatory grin on her face.
She swiftly yanked her clothes off, making Izuku gulp at her gorgeous body as always.
Then she rejoined him on the bed and lowered herself into position, and Izuku's world was replaced with Nana.
Smut begins here.
Nana smiled eagerly as she straddled Izuku's face, pushing her already-wet lower lips against his mouth.
He froze in shock. He couldn't speak, of course, so instead he asked through the link, "N-Nana? What are you doing?"
"This, Izuku, is called eating pussy. Here, let me show you what you should do," Nana replied, flooding their link with her desire just like they'd done the previous night.
Izuku quickly understood, and set to his task eagerly, starting off with a slow, exploratory lick up the center of Nana's folds. She groaned happily as the dull thrum of pleasure started to fill her body.
Her lover continued up her pussy until he found her hooded clit, circling it once, twice, three times, making Nana jerk impatiently before he flicked it with the tip of his tongue.
Nana cried, "FUCK!" and bucked involuntarily, the feeling of her own pleasure echoing back across their link telling her exactly what Izuku's tongue was doing to her, and how every nerve in her body was firing as he explored her in delicious detail.
Izuku's hands came up to caress her hips, holding her steady as his tongue dipped further, starting to trace patterns around her sensitive center. She bucked again, crying out eagerly as he kept her on her toes with occasional attention to her clit, letting the thrum of pleasure build up slowly and steadily.
His hands squeezed her perfect ass, kneading her flesh as he rapidly learned exactly where Nana's most sensitive spots were, attacking them with relentless ferocity that left her bucking and shuddering, her hands rooted in his hair to anchor her.
" Izuku...yesyesyes, right there," Nana panted, her eyes fluttering as she trembled under his tender care.
She started to roll her hips as his tongue vibrated in between her spread lips, sliding a little bit deeper into her as he tasted her eagerly.
Her movements were small, contained, but she couldn't keep conscious control of her body forever under an onslaught like this, where every agonizingly pleasurable sensation he gave her was multiplied again and again, rebounding between their minds and building upon itself until she was floating away in a sea of pleasure, yet he was nowhere near finished with her.
Nana's thighs were trembling uncontrollably, shuddering as her pussy was worshiped until her brain finally couldn't command her body anymore. As she squealed at one particularly powerful suck Izuku gave to her clit, her muscular thighs clamped tight to the sides of his head, squeezing powerfully as she arched her back.
Izuku realized what was going on, and he decided that being crushed to death by Nana's thighs as he ate her out was both a likely and an amazing way to die.
Nana couldn't even register the thought; her mind was a giant beating drum of pleasure as Izuku relentlessly pushed her higher and higher, ever closer to the breaking point.
She realized with a jolt that he was getting pleasure from this, too, as if her own pleasure was bleeding over to him as it endlessly looped in the space between them, flowing in and out of their minds.
She started grinding into his face, her legs locked firmly around his skull and ensuring he couldn't get away as she started to ride his mouth.
Nana cried out again and again, encouraging Izuku to get bolder and more intense with his teasing, making him lavish attention on every conceivable part of her center and pussy.
With his experience from last time, Izuku knew the precise moment that the tension in Nana's belly snapped, and she came wildly, screaming his name as she shattered, arching her spine and making her eyes roll back in her head.
Izuku nearly got overwhelmed by the ecstasy flowing off his girlfriend as she felt her own orgasm again and again, but he didn't let up, holding her firmly as she writhed and spasmed and never stopped cumming.
With his fingers, Izuku had managed to keep Nana climaxing for two minutes.
With his tongue still managing gentle movements over her clit and pussy as she writhed, he managed closer to four this time.
At last, Nana collapsed onto the bed, slumping bonelessly into Izuku's arms.
She was barely conscious for a while, as she tried to feel her body through a post-orgasmic haze so thick she thought she was back in that formless space she'd been reborn from for a moment.
At last, she managed to crane her neck to look up at her boyfriend.
"Did I do that right?" Izuku asked.
Nana glared at him. "If you didn't, I'm not going to survive you doing it right," she told him.
"Are you okay?" Izuku prompted, his expression concerned.
Nana nodded vigorously, slotting herself against Izuku like she was meant to be there. She assured him, "I'm better than fine, babe. Once you're ready, I'm going to fuck you, and then you get to see why I haven't been able to think of anything but you making me cum for the entire day."
Izuku just smiled faintly as his hands snaked around Nana's waist, holding her gently as she pulled the blankets over them.
"One of these days, we need to figure out why we create feedback loops like that," Izuku said.
Nana replied, "We sure do. I want to see if I can make you cum just by thinking about your cock, that would be fun."
Izuku went pale at the thought of Nana being able to completely drain him whenever she wanted. As he looked down at his girlfriend, though, all he could think about was how cute she was, with her button nose scrunched up while she slept.
Nana cracked one eye open and told him, "Call me cute again, and I will actually punch you."
Izuku laughed, "Sorry, Nana, but it's true!"
Nana grumbled and turned around in his arms. She muttered, "Nobody calls me "cute" like I'm some sort of doll... I'm a pro hero, dammit! Show me some respect!"
She felt Izuku press gently against her back, spooning her and nuzzling against her neck, and she instinctively let out a soft, contented sigh.
"I don't know, Nana, that was pretty cute," Izuku told her.
Nana refused to dignify that with a response as they drifted off to sleep.