I number among those who HC Shiro has a twin, also that he is related to Keith, or they know each other, in some way, before the Garrison. I favor a possibility of adoption. For the purpose of this story, they are cousins, wherein Keith has been taken in by the Shiroganes after the loss of both parents.

Keith hefted his backpack, sighed, and read the hand-scrawled sign on the wall next to the door, again.

The floor is lava! Don't fall in!

He peered into the room, again. The dorm room he was to share with one other cadet was a scene of chaos. What furniture that could be disarrayed, was.

There was one mattress on the floor, a chair was in the middle of the room, empty drawers had been pulled out of their slots and lay about the floor haphazardly, and there was a cap, shirt, pants and shoes layered to look as though someone might have fallen in.

He glanced up at the older boys to either side of him and stepped back to give them room.

Shiro held the door jamb and leaned into the room to crane his neck for a better view, "Looks like your dorm-mate has a bit of an imagination, Akira," Shiro stood back up to give his twin a turn to gape,"he's got a path to the bathroom, at least."

"What's this guy's name," Ryo leaned in as Shiro had, then glanced back at his cousin, with his upper lip curled.

"Uh, Darryl Stoker," Keith read from the slip of paper.

"Well? Are you going to see if you can make it into your room," Shiro gestured with his arm and a slight bow, grinning at the youth.

"I...I don't -," Keith shrugged, shifting the weight of his backpack on his narrow shoulders. It was packed almost as big as him, and weighed about as much, but he adamantly refused to let either of his cousins carry it for him.

"Oh, come on!" Ryo swatted the younger boy's chest before jumping into the nearest drawer, landing on one foot. He glanced back at his twin and cousin, and waggled his brows before hopping out of sight, into the next three drawers. The last drawer had been laid upside down, unfortunately, and Ryo's weight caused the upturned box to skid, which threw the teen off his balance. Ryo flailed his arms before pulling them in and up for a push off thrust, but didn't quite clear the bedframe. He landed loudly on the empty bed-frame, the heavy wooden slats clattering under his weight. Ryo gasped and grunted expletives as he rolled onto his back, clutching his knee to his chest.

High pitched laughter burst from further within the room, "Dude! You should have seen yourself!"

"Ryo?" Shiro ripped the page off the wall before slipping past Keith, and was quickly by his twin's side.

"Hey! You didn't play by the rules!"

"Hey! It's all fun and games until someone gets hurt," Shiro snapped at the boy who had been staking watch from the bathroom.

The sandy-haired boy was still chuckling when he asked, "You okay, dude? ...Wait, are you guys twins?"

"He's quick," Ryo gingerly rolled up his pants leg to inspect his shin.

"Ryo," Keith dropped his backpack near the closet before crossing the room, "are you okay?"

"I will be."

"You sure? You fell pretty hard," Shiro peered at the small line of blood and swelling just above his twin's ankle.

"Yeah," Ryo sat up with a sigh, unrolling his pant leg. He fixed a side-long glare onto the sandy haired boy, "You Darryl?"

"So what if I am? I know you're not Keith."

"I'm Keith," Keith crossed his arms and fixed his own glare on the other boy.

"Oh, that would make a lot more sense, because you and I are the same year." Darryl squinted and pointed at them, "Are you related?"

"Yeah, we are," Shiro stood.

"If any of your pranks hurts our cousin, you'll be answering to us," Ryo gestured having his eye on the youth.

"Look, I'm sorry you got hurt, man. I didn't mean for anyone to get hurt," Darryl shoved his hands into his pockets, and leaned against the wall, propping a foot up, too.

Shiro suggested, "How about you straighten the room up, Darryl?"

The youth considered Shiro's words. The older boy seemed to be offering a suggestion, but something in this older boy's manner made the younger teen decide to take it as an order. Darryl pushed himself off the wall with a sigh, "Fine," and grabbed the two things nearest him. One of the drawers he was holding had been the overturned one, "This one's all bent," he exclaimed.

"If it had been like the others, it wouldn't be bent, now, and the accident wouldn't have happened," Shiro said.

"But it was hilarious," Darryl snorted as he carried the drawers over to the cabinet.

"Did you film it," Ryo asked.

Darryl grimaced, then sighed, "I'm sorry. I didn't realize that would happen, or I wouldn't have moved the mattress." He slid one drawer into place and set the other in the closet.

"Well, try to think things through.. next time," Keith suggested.

"Yeah," Darryl found another drawer.

After a few moments of silently watching the boy, and exchanging glances with his twin and cousin, Shiro asked, "Where are you from, Darryl?"

"I'm from Iowa. Are you guys foreign? You look foreign. Where are you from?"

"How about you take a wild guess?"

"Ryo," Shiro hissed, then addressed Darryl, "We're from Washington*."

"Oh. I thought you might be from China."

"We're Japanese," Shiro said.

"You speak English pretty good. Have you been in the states long?"

"You're not so bad at speaking, either, for an American."

"All our lives," Keith scowled.

Darryl cringed when he glanced over his shoulder at Ryo. Then he sighed and shoved the last drawer into its slot.

Keith asked, "So, you're an engineer?"

"Yeah. You're a pilot?" Darryl slid the chair into place at the desk, then wrestled the mattress off the floor.

"Yeah."

"Can you stand? Um, Ryo," Darryl grimaced sheepishly.

"Yeah, I can stand," Ryo used Shiro's hand as leverage, then the young men stepped out of the youth's way.

"We're going to head into town for a meal once we got our cousin settled in. Want to join us, Darryl?"

Ryo swatted Shiro's chest, and glaring at his twin, mouthed, "What are you doing?"

"He's just a kid, give him a break," Shiro muttered back.

Ryo sneered, but kept quiet.

"I'd really like that, thanks," Darryl sat on the mattress he'd just righted.

Shiro said, "How about you get up, so Keith can make his bed. Then we'll go."

The young Iowan, blushed, nodded and pushed himself off the bed.

*This is in supposition, only. I couldn't find anything stating a definitive childhood home in any country, only ethnic background.