I finally wrote a transformers fanfic! Yay!
This spawned from the idea I have had in the back of my head that Miko, being an International Exchange Student, would have have to go back to Japan at some point in the near future. Those kinds of programs usually only last a year. But she's also become a part of the Autobot family. This is my take on how the gap between the two needs would be bridged.
I own nothing. All characters belong to their respective owners- the almighty Hasbro.

Miko wandered through Haneda International Airport, the language of her native land washing over her like a tidal wave. Despite her efforts, she had been unable to convince the exchange student program to lengthen her stay in Jasper. Thus, one week after the end of school (and that only thanks to a little creativity in the chain of information on her part) she had been shipped back to Tokyo. Away from America, away from Jasper, away from Jack and Raf and Mrs. Darby and Agent Fowler- away from the Autobots. Away from Bulkhead. Miko sniffed back her almost-tears for the umpteenth time and wiped her nose on the back of her hand.
They wouldn't even let her groundbridge back home. How lame was that? She could see the logic though. Her parents expected to have to buy her a plane ticket. Why disappoint? The thirteen hour flight was still lame though.

At least it had meant one last road trip with Bulkhead. They'd had fun on their way to the international airport in Las Vegas, blasting music and taking off-road short cuts.

She tried not to think about the goodbye that she'd avoided saying.

Where was the train again? Argh! This place was way too huge!

Miko lugged her suitcases annoyedly through the terminals. Then her pocket started screaming at her. She bit her lip as she recognized the wailing and guitar riffs.

Bulkhead.

"Hey Bulk'." She tried to sound cheery. "What's up?"

"Hey Miko. What's taking you so long?" Bulkhead jibbed.

Miko held the phone away from her ear, confused. "Say what?" she deadpanned into it.

"I've been waiting in this parking garage for hours and hours." Bulkhead moaned dramatically, trying to hold back a chuckle. Realization began to dawn upon Miko. Her eyes widened and she began frantically looking around for a sign pointing her in the direction of the parking garage.
"Sorry I can't come down and get ya, but do you know how hard it is to find a spot for a 'bot my size in this country?" Bulkhead finished.

She could hear the grin in his voice. It matched the one on her face. She'd found directions and was now racing through the airport, leaving disgruntled, confused, and just plain irritated travelers in her wake.

It took her six minutes to race to the garage. She had to take the elevator up a few levels. It wouldn't move fast enough and she danced around impatiently, garnering odd looks and sideways glances.

Finally the doors opened on the correct level. She shot out of the metal box, pouring out past several other people trying to exit. Miko didn't even bother to try and apologize.
She found him parked in the very back, away from prying eyes. Compared to most of the compact, economical and environmentally friendly cars in the garage, he still stuck out like a sore thumb.
Just like her.

Miko ran up and unapologetically wrapped her arms as far around the big green SUV as she could manage, giving the hood of the car a hug and finally letting her lame-o tears squeeze past her eyelids. Two salty drops fell on the dusty paint in the silence before Miko jumped inside, throwing her luggage into the seat next to her.
"Oh my GOSH! Bulkhead! I can't believe you're here! In Japan! You groundbridged here, right? Why didn't you tell me? THIS IS SO AWESOME!" She threw her hands up in the air.

Bulkhead chuckled, taking joy in the delight of his young charge.

"Didn't they tell you? I thought you knew! I'm not going to stop being your guardian just because you don't live in Jasper anymore, Miko." Bulkhead spoke as if it was obvious. A fact of life.
Miko felt herself tearing up again. She was so glad she hadn't said goodbye.

And then a second thought occurred to her. "Can you drive me home? My parents will Freak!"

While she's not my favorite character (and I would like to see her actually retain a lesson learned once in a while) I do not dislike Miko. And I find the relationship between her and Bulkhead to be fascinating.