A/N; Sorry the last chapter was ridiculously short, this one is a little longer to make up for it lol. ALSO! I just discovered the single line breaks at the end of writing this chapter so hopefully the next chapter will look less nasty, apologies. Also I'm writing on both phone and laptop, which doesn't help. Anyway. Enjoy my dudes and dudettes :)).

'Oi! Where are you going?' Rena yelled at her brothers as they bounded down the stairs together. Hiro grinned at her 'Tadashi's taking me out to a bit fight across town!'

She stared at Tadashi incredulously. 'I- what? Dash? Are you really?' He nodded silently, a grin on his face so wide it matched the one on his brothers. Rena was so confused. She didn't like it, she wasn't used to being confused, to have no idea what was happening.

'Uh, you sure Dash?' She whispered to him urgently as Hiro raced out of the room ahead of them, 'I thought you wanted him to stop? What did he say to you?' She knew all too well the effects of Hiro's puppy dog eyes, especially on her soft big brother.

'Trust me, alright? Hamada rule 23.' She knew then that whatever he was planning, he wasn't taking Hiro anywhere near any botfighting, and she doubted sincerely that he ever would. Hamada rule 23. Meaning simply, trust me. I know what I'm doing. I know I'm right. She closed her eyes briefly, remembering how that rule in question had come about. It was a year since the fatal car accident that had claimed their parent's lives and left them in the care of their Aunt Cass. She rememberd being a mere 7 years old, Tadashi slightly older. They stood in front of the big red monster that they called a car. 7 year old Rena was shaking like a leaf, remembering all too vividly the screeching sound of the impact, her parent's screams, Hiro's crying and the shards of glass that we're stuck in her hands and legs and neck and face. She heard her own screaming in her ears, felt the panic rise in her chest as it had on that fatal day. She squeezed her eyes shut, tell-tale tears sliding down her cheeks. Even then, a whole 10 years ago, Tadashi was still the gentle, nurturing soul that he was. He wrapped his arms around her, whispering in her ear that it was okay, that bad things were not going to happen again. Even at the tender age of 9, he was fiercely protective, and exceptional at wiping away tears and helping her to snap back to the present. They made it a rule, there and then. Hamada rule 23 - trust me, because I know I'm right. She opened her eyes, snapped rapidly back to the present. She looked up at her elder brother. Sure, he was older and slightly more tired looking, but he was the warm prescence that she needed, relied upon from the moment she was old enough to understand who he was and the words that he spoke to tenderly.

She nodded meekly. 'Well, whatever you're doing, you're not doing it without me!'

'What are we doing at your nerd school? Bot fighting is that way!' Exclaimed Hiro loudly as Tadashi pulled into the car park for SFIT.

'Excuse me, I don't think you have the qualifications to call anyone a nerd, Mr I graduated high school at the age of 14.' Rena retorted. Hiro scowled, pulling a face at her as they jumped out the car. She grinned at him. 'I win that one then.' He ignored her, jogging to catch up with Tadashi.

'What are we doing here, bot fighting is that way!' He whined childishly.

'Relax you big baby, it'll only take a minute.' Tadashi replied, a big grin on his face. 'Besides got haven't gotten to see my lab yet!'

'Or mine.' Rena added, 'you can decide who's is best. Mine or Mr boring over here.' Hiro sniggered as Tadashi dramatically swung a hand over his heart, feigning being wounded beyond words. They walked on, talking about nonsense until they reached the open lab.

'Be careful.' Rena advised her youngest brother, 'you may get decapitated by a rogue experiment as soon as the door opens.' Hiro swallowed slightly nervously as the door swung open. She was right to warn him though, Gogo's bike flew so close to his that she was surprised he didn't escape with a new haircut. She grinned at the look of astonishment one his face and wandered over to her own section of the lab as Tadahsi toured him around the place the students shared.

'Hey squish!' Honey yelled from across the room, 'come over here, will you?' Rena jogged over, anxiously looking over her shoulder at Gogo explaining her newest project to Hiro.

'Hey Honey, what's up?' she asked apprehensively, eyeing up the huge ball of metal in front of her.

'How hot does this need to be heated again? I know Callaghan mentioned it the other week, but I can't remember the exact temperate!'

'500 Kelvin.' Rena replied absent-mindedly, subconsciously running her fingers through her hair.

'Thanks Squish,' replied Honey, 'When was the last time you brushed your hair? It literally looks like a bird's nest.'

'Wait, you're supposed to brush it?!' exclaimed Rena, eyes wide. Honey rolled her eyes at her back as she turned on her heel and walked back over towards Hiro, who was busy being amazed by Wasabi and his freakish cleaning habits.

'Hey Wasabi!' she said enthusiastically, 'errr who's this?' She teased, pointing at Hiro, 'is it an ugly robot you've been working on?' Hiro opened his mouth, about to retort with some sarcastic remark when Fred crept up behind him. Hiro turned as he felt a presence behind him, and jumped a foot in the air as he spotted Fred's lizard face an inch away from his own. Rena had to clutch onto the wall behind her for support, she was laughing so hard. Hiro shot her a reproachful look as she straightened up, her shoulders still shaking from laughter.

'Sorry buddy, I should've warned you about Fredzilla over there.' Rena said.

'Fredzilla?! I LOVE THAT!' Yelled the lizard enthusiastically.

'Well done genius, now you've given him ideas.' Wasabi sighed, but Rena grinned at him. She followed the giant lizard towards the sofa that he always occupied, safely away from any experiments that may be going on. She sat on the floor, crossed legged next to the battered old armchair. The others joined her, chatting about something that she didn't particularly care about. She turned around, expecting to see Tadashi and Hiro coming to sit with them, but they never came. She frowned in confusion, wondering where they were. Honey voiced her thoughts before she even got the chance to herself.

'Hey, Squish, where's Hiro and Tadashi?' She asked gently, as though she was afraid of offending her. Rena looked up at her tall frame, a bit confused by the tone of her words.

'I don't know Honey.' she responded as the tall girl sat down next to her.

'I never realised how close they were.' Said a new voice, Rena looked up to see Gogo walking over to join them.

'Yeah,' shrugged Rena slightly sadly, 'Tadashi's always adored Hiro, and the other way around, I guess he was always a Father figure to Hiro. It's difficult to tear them away from one another sometimes.' She sniffed, surprising herself as she felt her vision become blurry with tears. 'I- I guess I have always felt a little left out sometimes.' She added quietly. What the hell am I doing? She thought to herself quickly Am I actually CRYING? Because they're close? What's wrong with me? She quickly wiped the tears away, laughing at her own stupidity. 'Anyway, I discovered this new song today, it's really good and I wanted to show you an-' she halted mid-sentence as she felt Honey's warm hand on her back. She looked up, slightly startled at the fact that all her friends were looking at her with something that could only be described as concerned.

'Are you alright?' Honey asked gently. Rena felt a sudden rush of affection for her friends and their concern that tears prickled in her eyes again.

'Yes! I'm fine! Thank you for your concern though.' She answered weakly. She was grateful that they noticed that she did not want to talk about it any longer, and moved onto another subject. She joined in quickly, not wanting to worry them more than she already had.

'DUDE! Ow!' yelped Hiro as Tadashi ripped a line of duct tape from his arm. 'What the hell was that f-,' he was shocked into silence as the sound of a balloon inflating filled the room. Tadashi looked over at him almost smugly.

'This is what I've been working on.'

The robot looked at Hiro, before walking forwards with a squeak of his short legs. Hiro looked up at the robot quizzically. He looks like a marshmallow he thought to himself, smiling slightly. This was so Tadashi. A giant, non-threatening freakin' marshamallow. After moving a small chair out of his way, the robot reached him.

'Hello. I am Baymax, your personal healthcare companion. I was alerted to your attention when you said ow.' Tadashi was behind the robot, positively beaming with joy at his invention.

Hiro paused uncertainly, 'A robotic, nurse?' He questioned hesitantly. He was not sure whether not to be impressed. But he was right. This was so on brand for his elder brother.

'I will scan you now,' Baymax said, 'scan complete.' Huh. Hiro thought to himself. That was fast, I'll give him that.

'You have a slight epidermal abrasion on your forearm. I recommend an antibacterial spray.'

'Woah hang on,' Hiro replied, determind to see how much coding Tadashi had actually done, 'what's in the spray?'

'The primary ingredient in the spray is bacitracin.'

'Ah. Bummer. I'm actually allergic to that.'

'You are not allergic to bacitracin. You do however have a slight allergy to peanuts.'

Ok. Now he was impressed. He turned to his brother as Baymax sprayed his arm. 'You've done some serious coding on this thing, huh?'

'Programmed him with over 10,000 medical procedures.' Boasted Tadashi happily. He grinned at his little brother as he examined his hard work, commenting on the various cameras and tech that he had used to create his robot. The two brothers were so immersed in their conversation that they did not notice a lone figure appear in the door frame. She cleared her throat loudly and they both turned.

'Having fun?' Asked Rena pleasantly, 'sorry to break it to you geniuses, but we've got to head off now. Lab's shutting soon. And besides,' she added, looking at Hiro 'isn't there a bot fight that someone desperately needs to get to?'

'Oh... yeah.' said Hiro, all the enthusiasm for bot fighting that he had showed previously gone. Tadashi watched him hopefully, he seemed as though he wanted to stay a little longer to explore, just like Tadashi had hoped. Hiro followed his sister out of Tadashi's lab and into the hallway where they stood waiting for him to finish packing up.

'So..' offered Hiro, 'what have you been working on?'

Rena chuckled. 'Nothing nearly as impressive as that, and also something you wouldn't be interested in.' She ruffled his hair affectionately. 'Jesus where is he? I've never known someone to take so long to finish up.' She turned on her heel and went back into the lab. Hiro could hear them talking about something, and began to make his way back into his brother's lab before he saw a man walking towards him. He stiffened slightly, instantly suspicious due to his long time of bot fighting and running into tall, dark strangers who just so happened to want him dead. The man came into view, and Hiro instantly relaxed. He saw the lanyard around his neck, and was quick to make the connection that this man was a professor, not a threat. And besides, his face was kind and gentle. he couldn't have looked intimidating if he tried.

'Nice bot.' The man held out his hand to take a look.

Hiro hesitated. He was always cautious about handing his bot out to strangers, but quickly concluded that the man could do no real harm.

'Uh, sure.'

The man turned the bot over in his hand, seemingly impressed. Hiro couldn't help but feel a surge of pride in his chest as the man looked over his bot. It was then that his siblings emerged from the lab at last.

'Oh hey Professor Callaghan,' said Tadashi nonchalantly, 'we're just finishing up here.'

Hiro's jaw dropped. 'Callaghan, as in... as in... Callaghan's laws of robotics?! No. Way!'

'That's right,' beamed Callaghan, 'ever thinking about applying here?' He started walking down the hall, Hiro following, postively startstruck.

'SEE!' Tadashi exclaimed excitedly to his sister, 'Hamada rule number 23! I told you! I knew stalling would work - I just had to get Hiro to see Callaghan.'

Rena rolled her eyes at her giddy big brother. Secretly though, she was impressed. Hiro would absolutely try to apply here now. She held up her hand and they fistbumped triumphantly.

'Hang on, that means he'll be hanging around on campus with us all of the time. Tadashi! I can't handle all that Hiro!' she groaned. Tadashi chuckled at her joke, seemingly unaware that what she said was at least half-true. She would never admit it to anyone - she loved both of her brothers more than life itself. Hiro was just a bit much sometimes - he still had a lot of growing up to do.

'No ideas! Nothing!'

'Useless!' Bang

'Empty!' Bang

'Brain!' Bang

'Wow. Washed up at 14. So sad.' Tadashi drawled from where he was sitting on his bed. Suddenly, there was Rena at the top of the stairs.

'Will you STOP the banging?! I'm trying to read and you will literally give yourself brain dam-' she paused mid-rant, catching sight of the expression on her brother's face. 'Hey buddy, what's up?' Out of the corner of her eye she noticed Tadashi sit bolt upright, and positively race to Hiro's side. The boy in question had his face in his hands and his shoulders were shaking, presumably with sobs.

'I got nothing! I'm never getting in!'

The two elder siblings looked at each other and nodded, an unspoken agreement being made.

'Hey.' Tadashi spun the chair around so that Hiro faced him. 'We're not giving up on you.'

Suddenly, Hiro felt himself being lifted into the air by his ankles as his siblings dangled him around his room.

'Look for a new angle!'

'Shake things up a bit, come on!'

'Guys, stop! Seriously I-'

'Nope. We are not stopping until you have an IDEA!'

They swung him around between them, Hiro making a mental note to tell Aunt Cass to buy more milk so he could get them back one day. He looked towards the stairs, hoping that she had heard the commotion and would demand that they release him from their evil clutches. But no, she was probably downstairs watching that creepy film that he hated, the one where the guy controlled people using his- hang on. Megabot glinted in the corner of his eye, and an idea sparked in his head.

'I GOT IT!' he roared in pure excitement, 'LET ME DOWN! I'VE GOT IT!'

The siblings obliged, dropping him not so gently onto his unmade bed, where he scrambled over to his desk, quick as lightning despite feeling as though his head was a washing machine. Rena and Tadashi watched in suspense as he desperately scribbled something into a piece of paper.

'And now...' announced Hiro impressively, 'I present to you, my ground-breaking, utterly genius, revolutionary, world chan-'

'Ok we get it, you're clever,' Rena interrupted quickly, before her brother's head got any larger. 'Just give us the idea, fishbrain.'

Hiro held up his sketch in front of them.

'MICROBOTS!'