"Kai, will you stop fooling? We've got stuff to get on with!" Tadashi shouted through his and Hiro's bedroom. He sat on his large bed, with a laptop over the top of his thighs, thoroughly concentrated into his work, whilst his young brother and friend Kai wrestled on the wooden floor.

"I'll stop when Hiro says he submits" she grinned devilishly with Hiro trapped in a lock on the floor, but Hiro wasn't giving in so easily. Tadashi rolled his eyes at the two's foolish behaviour, but a guilty feeling washed over him as he realised that he and Hiro used to be like that together. Why weren't they anymore? Tadashi had just been overwhelmed with work at his university, the San Fransokyo Institute of Technology.

"You think I'll just wimp out?" Hiro giggled manically as he struggled to get out of her grip, but she wasn't letting go so easily. After another attempt of wriggling his way out, he huffed. "Who trains you?" he spoke, but he wasn't surprised by her strength anymore. She had been spending a lot of time at the local gym for a few years now.

"Kabuto Seinosuke, you won't find a better personal trainer" she snorted, wondering how long Hiro could go before he finally swallowed his pride and gave in. "Just say you've been bested and it's all over"

Tadashi was growing bored of their shenanigans, he just wanted to get his work over with but he couldn't do that without Kai's input. He always had someone proof read his work, and he mostly preferred Kai to do it. Tadashi lightly tossed his laptop to the other side of the bed and stood to his feet. He threw his hat onto the bed frame and slowly made his way over to the two. He questioned where one body started and the other ended, wondering how they got into such a tangle in the first place.

"Oh good, Tadashi, help a brother out" he snickered

"If he's going to help anyone" Kai grunted, now struggling to keep her grip "It'll be me, right Dash?"

"He's a good brother, he wouldn't help an outsider!" Hiro teased, squirming around some more. Tadashi passed the mess they had gotten themselves into and stood by the door frame, about to leave. He held onto the frame and paused

"I think I'd rather go get some food, I'll let Aunt Cass that you're both in a bit of a... mix up" he laughed to himself quietly and walked down the stairs, making barely any noise whatsoever.

Hiro and Kai looked to each other, both the same idea in their heads.

"Draw?" Kai asked

"Draw" Hiro agreed and the two of them let go, instantly untangling from each other and racing to the door, fighting to get out of the room before one another.

By the time the two of them landed downstairs, Cass had just served their food onto plates and Tadashi was about to dig in.

"You decided to join us then?" Tadashi sniggered

"Wrestling again?" Cass sighed, rolling her eyes simultaneously

"Hey, I'm down a few points here, I need to get them back" Hiro smiled and the two of them took a seat around the table

"You two have been at this for at least a year now, when do you call it quits?" Cass asked as she dug into her own meal

"It's not me!" Kai excused herself with a giggle

"Hiro is just too proud to know when he's beat" Tadashi smirked and Hiro shot him an evil glare before starting his own meal, avoiding the vegetables. Tadashi's eyes flicked between Hiro and Kai, but they landed on Kai for a minute, he wouldn't have known that he was staring at her unless his Aunt Cass gave him a boot in the shin under the table. Quickly he snapped his gaze onto Cass, his eyebrows furrowed. She shot him a questionable look that he swiftly ignored.

An awkward silence fell in the room as all four ate their meal. Once they were done, Cass started to clear the plates away with Kai's help. Hiro retreated back to his room with a loud 'thanks' on the way up whilst Tadashi stayed downstairs to help with the washing.

"You two can go, I've got this" Cass encouraged with a smile

"I insist" Kai grinned politely "You're always so kind to me Cass, it's the least I can do" She spoke as she scrubbed one of the plates clean in the hot soapy water. Cass pouted with a humble smile and wrapped her arms around Kai's small athletic frame.

"You're so sweet"

"You go rest Cass, we've got this" Tadashi offered as Cass retracted her arms from Kai. Cass beamed at the two of them and quietly gasped. Tadashi knew that she worked hard all day, so this was the least they could do to give her some time off. Cass threw a towel at Tadashi who expertly caught it and she pushed herself up the stairs to lay down a while.

As Kai deposited freshly cleaned plates on the counter top, Tadashi dried them with a towel and stacked them, ready to be put away.

"Y'know, Cass really appreciates you" Tadashi grinned gratefully

"Only cos I do what her two dumb nephews should be doing" Kai winked, elbowing Tadashi in the side softly, forcing a light laugh out of him.

"I don't think the word is dumb"

"Fine, useless"

"Useless?!" he sniggered "I'll remind you of that next time you ask me to help with a project"

"When do I ever?" She gasped jokingly

"Oh Tadashi, Tadashi, I'm so lost, I need your strong will and amazing guidance, whatever shall I do without my brave best friend?" He mocked

"Dash!" Kai inhaled

"What? That's exactly what you sound like" he beamed to himself, feeling rather proud of himself. Without a moments through, Kai pulled her wet, soapy hands out of the sink and tackled Tadashi, tickling him in the ribs and under his arms. He laughed so hard his stomach ached and he could barely get a word out of his sly mouth.

"Kai!" He exhaled forcefully

"Strong willed huh?" She joked still making him burst out with laughter "Brave?" she sniggered, but within an instant, Tadashi was able to regain his composure and stop her tickling him by grabbing her legs and throwing her over his shoulder, gently spinning her on the spot.

"DASH!" She cried out as he cackled some more, receiving that usual six pack feeling from laughing too hard for too long.

After one turn, Tadashi spotted Hiro standing at the bottom of the stairs, staring at them questionably. Tadashi cleared his throat and gently put Kai back on the floor, she noticed him watching them too.

"You guys are weird" Hiro whistled as he quickly hid his home-made fighting bot behind his back, hoping to god that Tadashi didn't see. Slowly he creeped his way to the door, his eyes glued to Tadashi.

"Where are you going?" Tadashi questioned with an eyebrow raised, Kai rested her hands on her hips, knowing exactly what was going on. Tadashi knew it too, but he wasn't letting on about it.

"I was going to go… meet… James… yeah, James!"

"Who's James?"

"James Mcvoy… Yep!"

"Weird"

"Why?"

"Just… I heard James is in Hawaii with his parents this week that's all" Tadashi smirked, un-impressed by his kid brother but slightly amused

"Oh" Hiro's smile dropped and suddenly he was out of excuses. Tadashi knew. He knew that he knew. "Well… never mind then"

"Yeah… never mind"

Hiro skulked back upstairs and as soon as he was out of sight, Tadashi and Kai burst out into laughter.

"He's so going to sneak out, you know that right?"

"Yeah, we should probably follow"

"Dash, leave him, he'll be fine" She held his arm in comfort, she knew how he felt on the matter, but often he was just being over-protective. Tadashi didn't reply to her, he shrugged her hand off his arm and returned to drying up the plates used that day. Once they finished cleaning they knew they had work to get done before it got too late.

"C'mon, we've got stuff to do" He sighed and she followed him up the winding staircase, both gently stepping over Mochi who laid in the middle of the stairs.

When they finally got to the Hamada brothers shared room, they found it empty, no Hiro in sight. Tadashi's mood instantly changed, it was clear that he was bothered.

"That kid!" Tadashi growled under his breath, his fists clenching together

"Dash, he'll be fine, he can take care of himself" Kai placed a hand on him for comfort, but it clearly wasn't enough. Tadashi flicked his eyes to her, but they didn't linger. Kai knew that he was going to go after him and there was nothing she could do to stop him.

"You just don't get it Kai" His voice was soft, but the words still cut deep. She swallowed the sudden lump in her throat and slowly nodded her head, agreeing with him. Her hand retracted back to her side and she grabbed her bag and laptop, throwing it over her shoulder whilst Tadashi saw the mistake in the words he chose. "Kai…" He sighed "I didn't mean-" his words were cut off before he could finish

"I get what you meant Tadashi" She forced a smile but he saw through it instantly, she stood by the door and before she left she turned her head to him "Text me when you're home" she took a deep breath and took quick steps down the staircase.

"Kai" He called but she didn't reply to him, he knew she was long gone. He bit his lip and grabbed his helmet, he had to find Hiro and then he could dwell on the situation.