Izuku's Baby Sister

By Yuzuki16

75.1K 2.3K 279

Izuku was known to be an only child who was born with no quirk. Despite this set back he still aimed to be a... More

Teaser~~~
Notes:
|| Prologue ||
||1|| I saw you ||
||2||Thinking about you ||
||3|| Encounters ||
||4|| The day with Inko||
||5|| Decisions||
||6|| Birthday Gift||
||7|| Welcome Home||
||8||20 Questions ||
||9|| Ice cream date||
||10|| Movie night||
||11|| Cake Master ||
||12|| Back to school ||
||14 || Dancing in the rain ||
||15|| Her first Snow ||
||16|| Christmas & New Year||
||17|| Starting School ||
||18||First Day of School |
||19|| The Exploding Boy||
||20|| Quirkless? So what||
||21|| Physical strength is needed||
||22|| Eye opening ||
||23|| Happy Birthday||
INFO
||24|| What did you say..?||
||25|| Angered||
||26||All Might on drugs||
||27|| All around surprises ||
|28|| Training and learning||
||29||Strange Encounter||
||30|| Entrance Exam[s]||
||31|| New beginnings. Same habits||
||32|| Skip School and Invade UA||
||33|| Principal Nezu||

||13|| Mountain Ride ||

1.4K 58 13
By Yuzuki16


Third pov

"Wahh! High! High! We're really High!" Izuku yelled.

"Hold on tiny! Or you'll fall!" Laughed Isla, as she fixed Izuku's position on her shoulder. Izuku's eyes turned to swirls as his sight spun.

"I'm going to fall and die..." He kept mumbling making the woman holding onto him laugh loudly.

"Have faith! I would never drop you!" Then she jumped over a large gap to get to the other side of the mountain. Despite there being a bridge.

Izuku's soul has left his body.

"Hm? Is he alright?" Tsukiko looked up at the question turning her eyes from admiring the view from this hieght to her half dead brother on the other shoulder of Isla.

"Zuo? Are you okay?"

"My whole life just flashed before my eyes..." He whined shaking his head softly before giving a broken smile "I, I'm fine." Tsukiko stared frowning slightly.

"You are uncomfortable. Next time, if it's too much, please say."

"Um, Hai!" Izuku blushed unsure of how he should go about the fact that his three years old sister didn't seem the least bit scared while his soul was trying to leave his body.

"You don't get out much huh, tiny?" Isla looked down at him her yellow eyes reflected off the sun adding to its glow. "Well! That's gonna change! We need to add some muscles to you! Haha, you're joining our mountain rides from now on!"

"You've done this before?! Without anyone near you?!" Izuku freaked.

He understood they protected her but what happens when Tsukiko runs out of energy and they're forced to go back?! Did she have to take care of herself until she could summon them again?! She's only three! How does that work?!

"Of course not! One person came with us." That did not reassure Izuku at all.

"Why, why only one person?" This seemed like something Tsukiko and Isla kept hidden and he wanted to know. Maybe he was being pushy but he couldn't help the gut feeling that where they were headed wasn't just so they can have a day outside.

And by the looks Tsukiko and Isla exchanged, he was right.

"When we first manifested Suki was in danger." Isla's tone had changed "She was in a river going down stream. As she was in water, Matsumoto was the first one to appear before her. Aria, Ryota and myself came after. Our power was locked and we could only stay for five minutes since she was only a baby." Isla shifted to where she was now looking directly at Izuku.

"We did consider keeping her to ourselves, watching over her ourselves, we couldn't trust people with her. And after a majority rule, we did so. We kept her hidden. Later Talia and I quickly made a home. We each took turns watching and protecting Suki. And with how she had to rely on us, her mind developed faster. But after a year we realized we couldn't keep her hidden away on the mountain, so we went down and an orphanage took her in. Right after her birthday. Suki is a naturally observant kid, growing up in the mountains added to that and there became little people any of us trusted. But once she trusted you, and you proved that you can be trusted we'd go on a hike." Isla set Izuku and Tsukiko down.

"And we'd bring you here. To where my home first was!" Tsukiko finished holding Izuku's hand and pulling him towards the wooden house.

It stood tall, made of stone and wood that didn't look like it came from the forest at all. In fact it looked like a professional had done it.

"You...you built this?"

"Yep! It was trash at first but it kept Suki warm and out of the rain. Around winter was when her quirk upgraded from just summoning us to giving us some of our traits back. When that happened we all instantly worked on making sure the house was big enough, had heating for winter, had water and lights and all that. It helped that we kind of knew about the outside world already but with our own touches we made it work!" Isla grinned.

"Wow..."

"Right?!"

"But... about what you said. How only one person came here with you? Does that mean...?" Izuku squeaked as Isla kneeled to pat his head. She gave him a soft smile nodding

"Hai. We trust you Izuku. After watching you, and entrusting you with this gift. Not once have any of us regretted passing this to you. We have, fully accepted you as Tsukiko's guardian." Izuku teared up.

"Come on nii-san." Tsukiko took his hand and began to take him into the house the moment he stepped in Izuku felt a breeze pass over him.

"Ah~! It's been a while huh?" A red head appeared laying on the couch.

"Go around, don't hog the couch." Reeve appeared beside him.

"Still in good shape. Think it can survive another winter?" A white haired woman appeared in the kitchen seeming to observe it.

"It should." Aria and Ryota appeared. Not expecting it Izuku jumped when a large hand touched his hair ruffling it.

"So you're Izuku, huh? Nice to finally meet you!" Another very tall and large woman stood beside Isla, matching her in height and muscle.

"Kiko! My baby!" Izuku turned to see Tsukiko in the arms of another white haired woman. This one seemed more energetic than the other.

"Ano..." Izuku was stunned are they all...?

"Aniki." Tsukiko called out to him no longer in the woman's arms. "Meet my other family." She smiled up at him.

"Introduce yourself dumbass!" Matsumoto flicked his forehead.

"Ah! Right, um! Midoriya! I am Midoriya Izuku!"

"I am the fire sign, Leo! My name is Rekka! Nice to finally meet you, Izuku!" His wrist glowed.

"I am also a fire sign, Capricorn. You may call me Kion. I entrust Tsukiko to you as well." The sign changed but his wrist didn't stop glowing.

"I'm the air sign, Cancer, and I'm Yara. I look forward to our playdates!" Her sign glowed as well

"Earth sign, Sagittarius. My name's Talia."

"Nyla! I'm Scorpio!"

"And I am Isla! The Taurus sign!"

"I am Midoriya Tsukiko!" All eyes were on her now "Holder of the quirk. I fully accept Midoriya Izuku as the gatekeeper of my quirk. Giving him power to summon, unsummon and disable my quirk as he so chooses. Do you accept?" She looked around.

"We do!" The twelve people answered making Izuku's entire arm tingle.

"Do you accept?" Tsukiko was now looking at him.

"I...I do!" Once those words left him Izuku saw the symbols on his wrist began to spread.

He was in awe as it wrapped around his hand going up his arm one symbol after the next until it reached his arm. There a thick black line formed with a thinner line a bit under it. The first sign, Aries, stopped under it shinning before it stopped glowing, turned black and disappeared.

One after the other in the order the signs had accepted him in they did the same. With Taurus being the last sign to finish the seal Tsukiko stepped forward placing her hand on the symbols where she and Izuku glowed brightly. When Tsukiko moved her hand they stopped glowing and now two other lines similar to the thick and thin line appeared right above his elbow. It left room for the sign to appear between them.

"Well then, welcome to the family, Izuku!" Sage smiled bouncing over to him and wrapping him in a hug.

"Yeah! Cuddle pile!" Luz cheered rushing over to his twin and jumping on them.

"Not happening." Multiple voices declared as Tsukiko giggled joining the hug.

"Cuddle pile." She fit herself between the two landing in Izuku's arms.

"Don't you dare hog Ki-chan to yourself!" Reeve huffed joining.

"Just join it. You all know you want to." Ryota calmly stated as he joined the pile.

"Can't deny him." Rekka shrugged joining. Soon Izuku and Tsukiko were in the center of twelve large people in a cuddle pile.

"I know it's almost winter but, who wants to go in the pool?"

"I do!!"

"No you can get sick!"

"Ugh..."
"He's at it again."

"We should throw him in first."
"I'll take his right side."

Izuku laughed as Ryota was thrown into a pool of cold water. He was quite unhappy. What a way to spend a Saturday.

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