Hi everyone! This is based on a request from Spectre sparkle, who asked for Hiro to fracture his leg and get a concussion. Why must I write about my husband being injured XD anyway, I put it as a part 2 to this story since it's a similar kind of thing.

(I didn't include a concussion because I wanted to take a slightly different approach so I hope that's okay...)IMPORTANT: This is very different to the previous chapter. Here, Hiro is 7 and Tadashi is 18. Also, I'm using the AU where Aunt Cass doesn't exist, so Hiro and Dashi live together.

I don't own Big Hero 6!

~princess

It was a Saturday morning, and the sky was a clear blue. The temperature was high, and Tadashi shrugged off his cardigan as he sat working on his laptop; he was wearing a black t-shirt underneath. He wasn't overly happy about working inside on such a beautiful day but perhaps he could take his little brother, Hiro, out for ice cream later.

He was thinking about that as he got up to get a bottle of water from the kitchen. As if on cue, he heard the pattering of bare feet and he turned to see the seven year old enter the kitchen, bowl and spoon in his hand.

"You okay, buddy? Finished your breakfast?"

Hiro nodded, reaching up to put the bowl in the sink. He had to stretch and stand on his tiptoes to do this, and even then he couldn't actually see the bowl. The bowl fell in with a splash, and some droplets of water flew out and landed in Hiro's mess of thick black hair. The child shook his head like a dog, and Tadashi laughed.

Getting down on one knee to look at his brother directly, Tadashi said, "I'm gonna be working in the front room for a few hours, is that all right?"

Hiro nodded, gazing at Tadashi with his large brown eyes. "Can I take my skateboard outside?"

"Sure thing, buddy. Just let me get your helmet and stuff."

Tadashi got to his feet and hurried to get the protective gear. He always made the child wear a helmet, elbow pads, knee pads and shin guards.

When he tried to put it on his little brother, Hiro protested. "Dashi, I'll do it myself!"

Tadashi felt uneasy as he handed Hiro the items. "Are you sure, Hiro? All the straps might be a bit-"

"Dashi!" Hiro glared at his brother. It was quite possibly the least threatening glare that Tadashi had ever seen; Hiro was at most half his size, and he still had a bedhead.

"All right. But you will definitely put it all on, right?"

"Yep." Tadashi felt arms around his legs, and he looked down to see the top of Hiro's head. Smiling widely, he crouched down to hug the child. "Off you go, bonehead. I'll give you a shout when lunch is ready, okay?"

Ten minutes later:

It was about a minute after Tadashi had opened the windows. He had just settled down to work when he heard a low crash, and then loud wailing.

His protective instincts going crazy, Tadashi leapt to his feet and sprinted outside. The first thing he saw was Hiro's skateboard on its side. He then saw the child on the ground beside it and rushed towards him.

He was so panicked he even forgot to scold Hiro for not putting on his safety gear like he had promised. The child was crying, tears dribbling down his face as he wailed.

"Shh, shhh, it's all right, I'm here…shhh, don't cry, baby…" Tadashi sat down next to Hiro and gently lifted his little brother, cradling him in his lap. Hiro buried his face in the 18 year old's chest, still sobbing, gripping Tadashi's shirt with his small hands.

Tadashi continued to shush him, stroking his hair comfortingly. When the child had calmed down and his sobs had reduced to sniffles and hiccups, he took a closer look at the little boy's injuries.

Hiro had scraped both of his elbows badly, and blood was dripping from them. He didn't appear to be injured anywhere else but when Tadashi felt the back of his head, he was horrified when his hand came away wet with blood.

"Aww…come on buddy, let's get you cleaned up." Urgently, Tadashi got to his feet, holding Hiro in his arms. Hoisting the child up a little so he could rest his chin on Tadashi's shoulder, the eighteen year old quickly walked back inside.

He cleaned Hiro's elbows and put thick white dressings on them. His brother began to cry again as he did this, and Tadashi couldn't help but feel bad.

"I just need to clean your head," he said gently, dipping a cloth in cold water and dabbing the child's head with it. Hiro sobbed and hiccupped, whimpering when Tadashi applied a dressing then wrapped a bandage around his head.

"There we are!" he cooed, wiping Hiro's tears away with his thumb and then hugging his brother. Hiro wrapped his arms around Tadashi's neck and hugged him back, sniffling.

"My leg hurts," mumbled Hiro.

Tadashi bent his head down so his ear was next to Hiro's mouth. "What did you say, buddy?"

"My leg hurts."

Tadashi pushed up Hiro's baggy shorts and examined his skinny leg. There wasn't any bleeding.

"Can you try walking on it?"

Hiro slid off Tadashi's lap and found that he couldn't walk a step without limping and wincing in pain.

"You must have damaged the bone or something," said Tadashi anxiously. "I'll have to take you to the hospital."

Several hours later:

They left the hospital, Hiro hobbling along on crutches, his leg bandaged. He had apparently severely fractured it.

"Do I get to miss school?" asked the child, looking up at Tadashi with a grin.

"For a few days, yes." Hiro was already bullied on occasion, he would be even more vulnerable with this injury.

Tadashi's anxiety increased as Hiro struggled to walk. "Want me to carry you?" he asked, placing his hand on the child's back as means of support.

Hiro nodded and Tadashi picked him up, crutches and all. Hiro's legs wrapped around his waist and he held onto his neck with one arm as Tadashi supported his bottom with one arm and his back with the other.

When they reached the car, Tadashi shifted Hiro to his hip as he opened the back door with one hand; placing the crutches on the floor, he strapped Hiro into his booster seat. Once he had made sure the child was comfortable, he shut the door and climbed into the driver's seat.

It was late afternoon when they got home and both brothers were tired and hungry. Tadashi groaned and rubbed his forehead as he realised that he would have less time to finish his work; taking care of a seven year old was certainly keeping him on his toes.

He couldn't hold back a soft smile as he saw his baby brother reclining on the sofa watching a cartoon, his messy hair puffing out from under the bandage.

"How about I fix us a snack and then we can watch a movie?" he suggested, walking over and gently ruffling Hiro's hair.

The child smiled happily, adorable dimples appearing in both cheeks. Tadashi chuckled and headed back to the kitchen, his mind racing as he did so.

'It was only luck that the windows were open when Hiro started crying,' thought the eighteen year old. 'What if I hadn't heard him, and he couldn't get up? I'll make sure he has his safety gear on next time, but I need a backup…maybe I can create something that will always know when Hiro's hurt, and be able to treat him? Hmm…'