I'm so sorry, I had other plans for the direction this chapter would take but then this happened :o what do you think? Did Ty do it on purpose?I don't own Big Hero 6 or any of these characters (except Ty, I guess? XD)

~princess

Hiro found his homework relatively easy and was soon finished. He quickly grew bored, and woke up Tadashi in the hope of a game.

"You all right, buddy?" asked Tadashi sleepily, as Hiro shook him.

"I've done my homework," sighed Hiro. "Wanna play on the computer or something?"

"Sure," yawned Tadashi.

"Sorry, you can go back to sleep if you want…"

"No, I'll have a game." Tadashi smiled gently at Hiro and pushed himself off the bed, starting up the computer. "What was your homework on?"

"Oh, just physics and stuff." Hiro grabbed a controller.

"Physics and stuff?" quoted Tadashi, flicking Hiro's nose lightly. "I can see someone's taking college seriously."

Hiro rolled his eyes. "Come on Tadashi, just because I'm not a sweat like you-"

"Whatever. Come on, I'm gonna win for once!"

"In your dreams, big bro!"

Tadashi was glad to hang out with Hiro a bit and just have fun. He could tell the boy had had a stressful first day, and he wanted him to relax and enjoy college life.

After dinner, Tadashi worked on his homework while Hiro messed around in the garage, experimenting with a few different projects. He didn't come back for a while and Tadashi grew worried when he wasn't in by 10:00 PM.

The young man rushed down to the garage and smiled to see his brother asleep in his chair.

He gently picked Hiro up, trying not to wake the younger boy, flipped off the garage light and walked back up to their bedroom. He laid Hiro on his bed and the boy's chocolate brown eyes flew open.

"Glad to see you back with us," chuckled Tadashi.

"Did I fall asleep?" mumbled Hiro, a light pink blush smattering over his cheeks.

"Yup," said Tadashi, throwing on his pyjamas. "Come on, get changed now. I'm going to bed and you should, too."

At 12:00 PM, Hiro was just drifting off to sleep when his phone buzzed in his bag.

'I must have forgotten to shut it off,' he thought, as he silently slid out of bed and pattered over to his bag. Crawling back into bed with his phone in hand, he blinked in surprise when he saw a text from an unknown number. Opening it, he read:

Hey Hiro! It's Ty!

Hiro sighed and replied.

Hi. How did you get my number?

Ty replied seconds later:

One of your friends gave it to me, IDK their name. Anyway, wyd?

Hiro stifled a yawn. He didn't want to talk to Ty.

Trying to sleep, so see you tomorrow

With that, he turned his phone off and buried his face in his pillow, falling asleep in minutes.

The next day, at SFIT:

Hiro had no classes with Ty that day, in fact he only had mechanical engineering and electrical engineering. He finished earlier than Tadashi but wanted to walk home with his brother, so he went to Tadashi's lab to start on an assignment.

He soon got distracted by thoughts, gazing out of the window. His middle school and high school experiences had been, honestly, horrendous. So much so, he had completely blocked them from his mind.

So far, college wasn't too bad. He gotten a few mocking looks and comments from the older kids, but he was good at ignoring things like that. He had Ty down as a weirdo, but fairly harmless. Besides, Tadashi was always nearby. Nobody would dare hurt the younger brother of Tadashi Hamada.

Which was why Hiro barely reacted when Ty strolled into the lab.

"Hi, Hamada!" he called, throwing something to Hiro. Hiro caught it and glanced down suspiciously, quite pleased to see a chocolate bar.

"Thanks, Ty!" he said, tearing off the wrapper and taking a bite.

"Hey, no problem," said Ty, cheerily. "So, how's it going?"

Easily taken in, Hiro found himself warming to the older male. "Great! You?"

"I'm doing good, thanks."

There was a short silence, and Hiro realised that his throat felt strange. He was struggling to breathe.

Ty noticed. "Dude, you okay? Your face has gone really red…"

Frantically, Hiro grabbed the chocolate wrapper and could have kicked himself. He had never eaten this brand of chocolate before! Why hadn't he checked the ingredients?

"Get…Tadashi…" he gasped.

Ty sped off as Hiro wrenched his phone from his pocket and dialled 911.

Ty had had to interrupt Tadashi's class to fetch the young man, but as soon as he said 'Hiro' Tadashi had leapt from his seat and raced to his lab. He instantly knew what had happened and kneeled down in front of Hiro.

"Hiro! Have you used your epipen?"

"I left it…at h-home…" Hiro was really struggling now.

Tadashi immediately ripped his own bag open and pulled out the spare epipen. Pulling Hiro's shorts down, he counted down from three then jabbed the epipen in his little brother's leg.

"Have you called an ambulance?" he asked, and was relieved to see Hiro's nod. He dug around in his bag and found the inhaler, pressing it to Hiro's lips and pressing down a few times. Hiro was allowed to use the inhaler up to ten times if he had a reaction.

Hiro began breathing a little easier, but he looked awful. His cheeks were flushed, but the rest of his face was deathly white. He clung to Tadashi's hand.

"The ambulance will be here soon. Stay with me, okay? I love you so much." Tadashi pressed his lips to Hiro's forehead as he rubbed his baby brother's back comfortingly.

So I have a brother with a very serious nut allergy. Thankfully he's not had nuts since he was a baby but I understand Tadashi's anxiety for Hiro. I know Hiro apparently only has a mild allergy though, so apologies for scaling it up a bit haha