This is a bit different and sadly, not shippy. However I figured this drabble would be the perfect trial run for an AU I have been entertaining. If it is rushed, I apologize. I wanted to keep it as a drabble and it is nearly at 1000. Also I didn't namedrop Setsuna's mom here but her name is in another post I made.
It was Izuku's 8th birthday. As usual, nobody showed up to greet him and his mom. Nobody But a little girl with longer curly green hair and lizard-like eyes. She carried a package in her arms, insisting on doing so herself.
"Mr. And Mrs. Tokage. So glad you could make it. Nobody showed up and, well." The woman trailed off, looking sadly at her son's bedroom door.
She was cut off however by the little girl zooming by to and placing the gift on the couch. The adults stood and looked at each other as Setsuna sent a hand flying off her body and into the door, knocking it open. She already had a party that on (customized with dinosaurs) and a noisemaker at the ready.
"Happy birthday, fellow green bean!"
The girl leapt into the air and bounced onto the bed.
"ACK! SETSU-CHAN! WHAT THE HECK?!"
The lonely boy without a quirk was sent flying and taken by utter surprise. He really should have expected a sneak attack from his only real friend at the time.
"I heard you were down. Can't have that on my fellow brand's birthday. Quirk or not, you're special. I got you something. One second!"
The girl's arms went flying into the sitting room to grab her present. Unfortunately she was having a bit if trouble with it. Her dad's voice rang out.
"What did we say about unregulated quirk use, Gecko."
"Sorry, dad! Could you bring in Izu-Chan's gift please? I want to hand it to him."
Ryunosuke obliged and walked in carrying the present. He placed it on the bed in front of Izuku and his daughter. It was a surprisingly moderate sized box. Izuku's eyes sparkled at the possibilities before he tore into it. Thankfully there was no disappointment this year.
It was a player featuring I-Island and the hero Godzilla. Attached to the box was a rare figure of Young age All Might, accompanied by one of his lesser known villains,Titanboa. Leave it to his friend to pick out something he really likes while sticking to a reptilian theme.
"T-t-thank you so much, Setsu! You are amazing"
"Hehe. No prob! Let's play with him! It's what toys are for! Dibs on Titanboa! I've been perfecting an evil voice. My sis used it to scare me during bedtime stories.
"Sounds great, kids but maybe later. It's time for eats." The imposing yet relaxed lizard man hissed paternally.
"awww nuts. Ok. But after dinner it's time for justice!"
The 8 and 7 year olds (respectively) left the toys and wrapping paper on the bed and headed to the kitchen to help set up, leaving Setsuna's dad to laugh gently and throw the wrapping paper into Izuku's trash.
The party, as small as it was, was still meaningful. Katsudon, being Izuku's favorite, was on the menu, as was an All Might themed birthday cake. The adults spoke about work and their kids. Meanwhile, said kids had played with Izuku's presents, including a handmade All Might Hoodie from his mom and a card with money in it from his dad overseas.
"Thank you...so much...you are so nice to me. Nobody else showed up but you did. I-I don't deserve it. You have such a cool quirk while I'm…"
The tears welled up as the young boy looked at the ground. He felt a lump in his throat as the emotions welled up and made their escape.
A hard punch landed on the boy's shoulder, dragging his attention to the burning eyes of a frustrated little girl.
"Stop it! Don't you ever do that again."
"Insult my brother, you dingus!" She puffed her cheeks and stuck out a forked tongue.
Izuku was confused. He never made disparaging remarks about anyone's siblings. Besides, his reptilian pal had an older sister and some cousins but no brother.
Then it hit him, as did the tears. He felt blessed just to have a real friend, one Who was genuinely kind to him and didn't treat him like garbage. But to actually consider him family? The quirkless boy was touched beyond words and could only cry. This had been the best birthday he could ever ask for.
"Hey, Zuku-bean. Don't fall apart on me!" the young girl laughed softly, puncturing the turn of phrase by breaking into several chunks using her quirk. This got a laugh out of her fellow greenette.
"There we go. A smile worthy of All Might~"
"T-thank you, Setsu-Chan… Even without a quirk… I feel grateful. You'll make a great hero some day."
"Aww shucks. You too, my bro-coli."
"You are way better at nicknames then Ka--"
Setsuna cut him off with a finger to his mouth and shook her head.
"Nope. He didn't show up so he doesn't get airplay. Baby Boom boom can stew in his ego. This is your day."
Izuku looked at the vintage Young age All Might figure Setsuna had bought him, as well as the Godzilla themed card she picked out in typical Tokage fashion.
"No ...it's our day ...you...You called me your brother….I...so that makes you my sister...right?"
"Duh? Of course. Cone on. I think there is some cake left. You run interference and I'll bring it into your room so we can watch Power Rangers."
"Gotcha...um...Sis-suns? Setsister?"
The lizard girl snorted and laughed.
"Needs work but I like it. Come on! We heroes have a special mission!" The girl posed dramatically with a wink. Izuku followed her lead.
And thus a meaningful day continued until it was time for the Tokages to leave. But of course, there was more to the story than that. Perhaps one day, it will be told. For now, both children left secure in the knowledge that their families had grown by bonds if friendship.