"Wan wan!" a big cheery dog barked as it marched through UA's courtyard towards the door. A tiny little girl rode on the back of the dog, laying down with a bento tucked under her chin and between her tiny hands. They came to a stop right in front of the doors, and the dog let the toddler climb down with the bento.

"Sorry Ko-chan, but I need to go forward alone"

The dog laid down and whimpered, wanting to see her master, but understood.

"Nii-Chan!" the toddler cheered as she marched inside, bento in tiny hands.

The hallway was full of activity as usual; students walking around, talking about classes, etc.

But the routine was disrupted by a short object toddling through the middle of the hallway. It was a little girl, who looked as young as 12 months toddled forward with a bento box hugged to her chest. She had dark green hair, green eyes, and freckles smattering her face. She had her hair in two pigtails in the front, resembling bunny ears, and she wore a onesie that looked like a green All Might suit. Her wittle face was set in the closest thing a baby could get to grim determination.

"Whose kid is that?"

"How did she get in here?"

"Look at her little outfit!"

"She's so Kawaii!"

Ignoring the comments of the various students, she continued on her way. She paused at the sight of an older woman wearing what looked like bondage gear, and decided an adult was still an adult. Walking up to the woman's leg, she tugged on the thin fabric of her suit.

Midnight was walking hurrying towards her class, having been held up by a meeting, before she felt a tiny tug on her leg. Looking down she a-

"OH MY GOD YOU'RE SO CUTE!"

…yeah that.

"What are you doing here all alone?" Midnight asked with stars in her eyes as she tried not to explode from the cuteness.

The stoic child simply replied," Onii-chan forgot his bento," presenting the box in his question. "Where is Nii-chan?"

"I'LL HELP YOU FIND HIM!"

"… So I get the reamer about 2cm in before it shatters in my hand. In hindsight; I'm surprised I got it in at all. So anyway, that's why I was shirtless with Recovery Girl beating me with her cane," Izuku recalled the embarrassing story to his classmates. He had to sensor the inclusion of a grown heroine and tiny tulpa, but they got the gist of his mother meeting a lady friend of his.

The class was silent for a moment, before it was broken by Kaminari. "That is the greatest story ever." He said with no room for argument, it was simple fact.

"It is, it really is," Bakugo agreed with an unusual calmness, a slight grin on his face.

Mina and Ochacko giggled, both believing they knew the identity of this 'lady friend'. Before anyone else could voice their own comment, Midnight burst in with stars in her eyes.

"MIDORIYA HOW COULD YOU NOT TELL ANYONE ABOUT YOUR LITTLE SISTER SHE'S SO KAWAII!" Midnight said as a smol girl walked in through the door she had opened.

"Onii-chan!" she yelled as ran up to Izuku and presented the bento to him.

Izuku acted on instinct and picked Kiri up and placed her in his lap and put the bento on his desk. "Kiri-chan I thought you were gonna spend all day with mommy. How'd you get here?" He asked in a practiced 'brother voice', poking her pudgy belly. Kiri just squirmed a little and cuddled in to her brother's chest.

"I made you a special bento and you left without it," she replied, her eyes closed as she tried to mold herself to her brother's chest.

"Did I? I'm sorry imouto," Izuku had no idea she made him anything, but he knew she was just so cute right now. Izuku ruffled Kiri's hair and placed a gentle kiss on her forehead, earning a soft, contented sigh from the mental projection.

"Oh…"

"My…"

"Kami…"

Izuku looked up to see the entire class staring at him and his little bundle. The reactions ranged from shocked, to curious, to every single girl in the room staring at the scene with big dewy eyes of wonderment. 'Uh oh' was the only thought going through Izuku's mind. At the very least Kiri looked more like him in this form, so the 'she's my little sister' excuse would work.

"Okay…" He lifted Kiri up by her underarms and presented her lion king style to the class. "This, is my imouto Kiri-chan. Say hi to everyone Kiri," "Hi," Kiri greeted in her usual monotone.

"SHE'S SO DARN CUTE!" Most of the class exploded.

"Look at her little pig tails, she has bunny ears!" Momo squealed in delight.

"Wook at her wittle outfit, she's mini-Izuku," Tsuyu cooed.

"Forget the outfit, look at her freckles, ohhh I love her so much already," Mina said.

"… You have a FUCKING SISTER!" If I need to tell you who said this, you have never read the manga.

"KATSUKI!" Every girl in the class yelled and sent him a look that made him shrink.

Saving Katsuki, a loud ruckus sounded from the hallway: A skittering of claws followed by loud footsteps.

Suddenly, a young German shepherd puppy ran into the room and jumped into Izuku's lap, giving puppy kisses to him and Kiri.

"Koko?!" "Ko-chan! I said you wait outside!" Kiri admonished the puppy, who gently nipped Izuku's fingers as he tried to tickle her ears.

The footsteps caught up to Konig, revealing a trio of female students. They were a girl with bright blue hair that trailed far past her waist, a girl with hair that obscured her eyes and resembled a mushroom cap, and a blonde half-American with horns.

"Where's the puppy?!" They squealed as one before spotting it and a teeny baby in the lap of 1-A's cinnamon roll. Squealing at a pitch that made koko cover her ears with her tiny paws, they pounced.

"Oh SHI-

"I don't believe it! This entire act of yours; the stuttering, the shyness, the cute things are just so you can get girls aren't they!" A jealous Mineta cried tears of blood as he throttled Midoriya by his collar. Izuku didn't respond, still in a daze from what had transpired.

A sleepy Kiri laid her head on a napping Konig, who sat in the middle of a circle of fangirling teens and midnight. Both of them had kiss marks all over their faces, as well as Izuku, who got caught in the crossfire.

All the boys had different reactions, highlights: Iida was trying to restore order, Kirishima knelt next to the sleeping babies, hands tucked under his chin and eyes wide in open-mouthed wonder, Mineta was being jealous of Izuku while Kaminari begged on his knees to learn from Izuku, and Bakugo just sipped his water with a contented look.

and Aizawa just stared at the entire mess in front of him and walked out of the room.