My Harem System In My Hero Academia

Like usual, Yami and Momo arrived at U.A., riding in her sleek black limo. 

The only thing different that morning was the heavy rain pouring down on the school grounds and the silent golden cowbell hanging around Momo's neck.

As the limo pulled up, Momo reached into her cleavage and pulled out a black umbrella. 

She snapped it open as she stepped out, the fabric shielding her from the downpour. Behind her, Yami slid out, wrapping an arm around her waist to keep himself dry.

They walked toward the main building, their footsteps splashing against the wet pavement. 

The rain pattered loudly against the umbrella, but the sound faded as they entered the warm, dry school halls.

When they reached the classroom, a few classmates were already there chatting about the upcoming internship selections. Yami and Momo took their seats.

"I'll just go with whoever has the biggest tits," Yami said casually, leaning back in his chair. "Or, if I can get an internship with Mirko, that'd be perfect."

Momo raised an eyebrow as she absentmindedly fiddled with her cowbell. "Mirko? The tanned rabbit hero? She doesn't seem like your type."

Yami smirked. "And what's my type?"

Momo gave him a sideways glance, thinking for a moment. "Well, your mom, for starters—white skin, huge to gigantic breasts, thick."

"And?" Yami leaned in, clearly amused.

Momo crossed her arms, tapping her fingers against the desk. "Mirko is… different. She's built like a tank. Buff. Pretty tall, from what I remember."

"Weird," Yami said, rubbing his chin. "I always thought she was short."

Their conversation continued, mostly around which female pro hero Yami would want to smash. 

Time passed quickly, and soon, Aizawa walked into the room—looking way less like a half-dead mummy.

"Aizawa-sensei, I'm happy you could remove your bandages," Asui said, playing with a strand of her hair.

Aizawa let out a tired sigh. "The old lady got a little overdramatic with her treatment."

The class chuckled at that.

"But let's put that aside," he continued, his expression shifting to something more serious. "Today's Hero Informatics period is a little special."

A moment of silence passed before Aizawa dropped the news.

"It's time to formulate your codenames—your hero names."

The room exploded.

"Oh my god, yes!!"

"Now THIS is makin' my chest swell!!"

Students cheered, fists pumping in excitement. Even the more reserved ones, like Todoroki and Tokoyami, seemed interested in the announcement.

Yami smirked, resting his chin in his hand as he watched the chaos unfold.

Momo leaned closer, whispering, "Do you already have a name in mind?"

Yami grinned. "Yeah. But I wanna see what the others come up with first."

Momo sighed, shaking her head. She had a feeling his name was going to be something ridiculous.

Aizawa rubbed his temples, already regretting how loud the class was getting. "Alright, alright, settle down. Midnight will oversee this part of the lesson, so don't embarrass yourselves."

As if on cue, the door swung open, and Midnight walked in, her tight hero costume hugging every curve.

The room went silent for a second. Then—

"OH HELL YEAH!!"

"LET'S GO!!"

Midnight giggled, winking at the class. "Well, well, aren't you all excited?"

Yami smirked. 'Nice to see her again so soon, I'll try to...'

====

[New Mission: Midnight Delight!]

Objective: Fuck Midnight within one month.

Time Limit: 30 days.

Reward: ??? (I'm feeling generous.)

Failure: Cockblock of Destiny (Your next three sessions will end prematurely.)

====

Yami raised an eyebrow. "Huh." Midnight wasn't exactly subtle with her flirting, and Yami already had her number, so it wouldn't be that hard.

Before he could think too much about it, his focus returned to reality. Midnight, who had just strutted into the classroom and—yep, no bra, sent everyone a kiss.

Her massive tits bounced, barely contained by her skintight hero costume. 

The way the material clung to her curves made it clear she had no problem flaunting her body, especially with all the thirsty looks from half the class.

Aizawa sighed, rubbing his temples like he had already given up. "This is related to the draft nominations by pro heroes I mentioned," he said, his voice as tired as ever.

The students straightened up, suddenly paying more attention. Even Bakugo stopped glaring at the wall for a second.

"The nominations will truly start mattering only after you've gained more experience and your adaptable fighting abilities are judged during your sophomore and senior years," Aizawa continued. 

"In other words, the nominations you're getting this year are more like expressions of interest in your potential. They don't guarantee anything yet."

He pulled out a tablet and tapped the screen. "Now, the tally of total nominations is as follows:"

A holographic screen appeared at the front of the class, listing the results.

A-GROUP DESIGNATED CASES:

IWATANI - 6,123

TODOROKI - 3,421

YAOYOROZU - 1,169

OJIRO - 301

KAMINARI - 272

KIRISHIMA - 68

URARAKA - 20

BAKUGO - 14

A heavy silence filled the room as the numbers sank in.

"WHAT THE FUCK?!" Bakugo exploded, slamming his hands on the desk. "FOURTEEN?!"

Yami snorted. "Damn, even Midoriya could've beat you."

Bakugo spun toward him so fast he nearly knocked over his chair. "SAY THAT AGAIN, YOU PIECE OF SHIT—"

"Settle down," Aizawa muttered, clearly too tired to deal with this. "Typically, the results are more balanced, but all the attention leaned towards three of you this year." He glanced at Yami, Todoroki, and Momo.

Sitting beside Yami, Momo was still blinking at her number, her fingers lightly gripping the cowbell around her neck. "Over a thousand…" she whispered, a mix of pride and disbelief in her voice.

Todoroki, as usual, looked utterly unbothered. He just stared at the screen, expression blank.

Meanwhile, Yami smirked, leaning back in his chair. "Six thousand, huh? Not bad."

"Not bad?!" Kaminari gawked. "Dude, you got more than double Todoroki! That's insane!"

Yami shrugged. "I mean, I did put on a show."

"You broke Bakugo like a cheap toy," Kirishima added, still chuckling at the memory of their match. "And you made Todoroki go full fire mode in front of everyone. Of course, they're gonna want you."

"Yeah, yeah, we get it," Bakugo growled, still fuming. His eye twitched dangerously like he was seconds away from exploding something—or someone, hopefully, himself.

Aizawa ignored the growing tension and continued. "And it's not rare for interest to dry up before graduation. If you don't keep proving yourself, some of these offers will disappear."

Yami wasn't worried. If anything, this just meant more people watching him. More chances to make an impact. And, if he played his cards right, he had more chances to get in good with certain pro heroines.

His golden eyes flicked toward Midnight, who was leaning against the podium, her arms squishing her tits together. 

She was watching him, her red lips curled into a knowing smirk.

Yami smirked right back. 'Thirty days, huh? Yeah. I got this.'

Aizawa sighed, rubbing his temples before elbowing Midnight. She took the hint and stepped forward, her red lips curling into an excited smile.

"The names you pick now—these will be the names the world remembers you by!" she announced, striking a pose. 

Her massive tits bounced with the movement, and a few of the guys had to force themselves to look away.

"In many cases, these names stick with you even after you go pro!" she continued, her voice full of energy. "So choose wisely!"

Aizawa nodded, looking like he had been through this more times than he cared to count. "She's right," he muttered, his tone much calmer than Midnight's. "It's something you don't want to regret later."

Midnight flipped her hair back dramatically, her smirk growing. "It's like that old phrase—'Names and natures often agree!' The name you choose will shape how people see you. Your future as a hero will reflect the image you project with it."

She placed a hand on her hip, her body practically glowing enthusiastically. "So! You have fifteen minutes to come up with something! Don't overthink it, but don't be stupid either!"

Some students immediately started scribbling down ideas, while others sat deep in thought.

Yami, meanwhile, just leaned back in his chair, completely relaxed. His golden eyes flickered with amusement as he listened to his classmates argue about their names.

"A name, huh…" Yami muttered, flipping his hand over. He petrified one of his nails, cracked it off, and began twirling it between his fingers like a guitar pick. 

His golden eyes flickered towards Momo. "You already got one picked out, Cow?"

Momo absentmindedly played with the small golden cowbell around her neck, her fingers brushing over the cool metal. "I already thought about it when we were working on my hero costume," she said. "Everything Hero: Creati."

Yami nodded slowly. "Huh. Sounds nice. Fits you."

Momo glanced at him, tilting her head. "You think so?"

"Yeah," Yami said, flicking his nail into the air before catching it. "I just realized something… our motifs are kinda the same."

Momo raised an eyebrow. "What do you mean?"

"You can make almost anything," Yami said, leaning back in his chair. "And I can do almost anything."

Momo blinked. "I guess… adaptability is a shared theme between us."

Yami smirked. "See? I'm not just a pretty face."

Momo rolled her eyes, but she was smiling. "You? A pretty face? That's a stretch." Momo said, teasing Yami as she ran her palm across his face.

Yami chuckled, twirling his nail again before flicking it onto his desk. "Seriously, though. It's interesting. You create, and I evolve. Two different approaches, same core idea."

Momo nodded, her fingers still grazing the cowbell. "Yeah… I never thought of it that way."

A few desks away, Kirishima leaned over toward Kaminari. "Man, they're totally gonna get married one day," he whispered since they couldn't hear what Yami and Momo were talking about.

Kaminari smirked. "You're just figuring that out?"

Kirishima showed Kaminari something on his paper. "What do you think of 'Red Riot'?" he asked, his sharp teeth showing in a grin.

"That's actually kinda badass," Kaminari admitted, approvingly nodding.

Meanwhile, across the room, Bakugo was practically vibrating in his seat, muttering angrily. "Damn nerds… my name's gonna blow theirs out of the water…"

Yami watched them all for a moment before sighing. He flicked his petrified nail into the air and caught it again, spinning it between his fingers.

One by one, the students of Class 1-A stood up and announced their hero names. Some were met with cheers, others with laughter, and a few with confusion. As the list went down, the anticipation grew stronger.

Finally, it was Yami's turn.

He stood up, stretching his arms lazily, before grabbing his tablet. His footsteps were slow and relaxed as he made his way to the podium. 

The whole class was watching him, waiting to see what kind of name he had come up with.

Midnight leaned forward slightly, her red lips curled into a smirk. How her eyes ran over Yami's body made it clear she was imagining something far less professional.

Meanwhile, Aizawa barely even looked up, rubbing his temples like counting the minutes until he could leave.

Yami ignored both of them. He stepped up to the front, turned the tablet around, and held it up for everyone to see.

"Dark Obsidian Hero: Sanzen"

The room fell silent.

Then, a few whispers.

"Sanzen…?" Kirishima muttered, tilting his head. "What does that mean?"

"It means 'brilliant' or 'dazzling,'" Iida explained quickly, adjusting his glasses. "It's an old word, but it fits."

"Ohhh," Kirishima nodded. "Dude, that actually sounds nice!"

Yami smirked, tossing his tablet onto the podium. "Good. That means you'll remember it."

Sitting at her desk, Momo tapped a finger against her chin, thinking. "It fits you well," she said. "Dark Obsidian... and Sanzen... It's a contrast. Something solid and unbreakable, yet shining and radiant."

Todoroki, as usual, remained expressionless but gave a slight nod of approval. Bakugo, on the other hand, just scoffed. "Tch. Sounds fancy for no damn reason."

Yami chuckled. "Yeah, and what was yours again? Oh right—'King Explosion Murder.'"

Bakugo's face turned red. "I CHANGED IT, DUMBASS!"

Ignoring the outburst, Midnight's smirk widened. "Sanzen, huh?" she purred, rolling the name over her tongue like she was testing how it sounded in bed. "Strong. Sexy. I like it."

Yami's golden eyes glinted. "Figured you would."

Midnight giggled, clearly enjoying the interaction, while Aizawa sighed. "Alright, good. Next."

Yami walked back to his seat, still smirking as he leaned back. Momo gave him a sideways glance, shaking her head but smiling.

Kirishima grinned. "Dude, not gonna lie—your name is cool as hell."

Yami shrugged. "Of course it is. It's mine."