Hello, World! this is my second ever story, so I apologize in advance for any mistakes. This takes place after the Promised Day in FMA, with some changes that you'll find out about later, and is a little AU with the Naruto world, but it mostly happens in Xing anyway. Ling and Tenten are 18, Ikazuchi means thunder, and I think that's all you need to know, I think.

Ikazuchi: The UnderWolf only owns me , Sushi, and the plot. Naruto and Fullemetal Alchemist belong to Masashi Kishimoto and Hiromu Arakawa, respectively.

he sun was shining, birds were singing, and it was terrible day. At least, it was for Tenten. The kunoichi slammed the door of her little apartment as she turned on the flickering lights. Sushi, her cat, mewed at her, tail swishing, asking to be fed. She sighed as she filled the little glass dish with the putrid-smelling canned food. As the black and brown cat scarfed down her dinner, Tenten went back down stairs to pick up her mail.

She had just returned from here first solo A-rank the night before, only to find that her team had left on a mission without her the afternoon before and conveniently forgotten to let her know. So, Tenten had shown up for training at five and waited, training on her own (and breaking her favorite fuuma shuriken in the process) for three hours before going to the Hokage to find out where her team had gone. After that, she'd lost four kunai, several knives, some shuriken, and a few yards of wire to a bratty gang of scavenging academy students, who she'd resisted the urge to maim, because they were barely ten and frankly weren't worth the trouble. Then she'd stained her shirt at lunch, lost her last fifty ryo, and been stung by a wasp.

She sighed as she flipped through the envelopes, trudging back up the stairs. Bills… bills…taxes… more bills… junk mail… letter from Ling… junk- wait, what? Steel grey eyes widening, she sprinted back the rest of the way, throwing open her door and tossing the rest of the mail on the table as she passed it. Flopping onto the couch, she slit the envelope with the tip of a convenient kunai and pulled out the letter within. It was written in Xingese, a familiar sight for her tired eyes.

Dear Tian,

Hey, Sis! Remember me? You'd better! It's been a while, huh? How are you? Do you know how long it took me to track you down? Be more specific next time!

Anyway, guess whose coronation is coming up! Yeah, that's mine! I did it! And now you owe me fifty cenz. So there. Be in the imperial city on August 19th.

So I looked into your new home a bit, and it has a lot of potential as an ally. As Emperor, I have a plan to make a treaty with Konoha, and I've already sent a letter to your 'Hokage' requesting a team be sent on good faith and explaining that you're coming. No, I didn't mention we're related, so, relax. I'm not sure she got it, so please pass the message on?

I was thinking, do you want to be an ambassador here? It would be the best of both words. We have so much to catch up on! You've missed a lot- I went to Amestris and made friends! You'll get to meet them. Plus, Lan Fan has no clue I'm writing to you, so it'll be a great surprise.

See you soon,

L. Yao

She shook her head smirking as she read it. It was just like him. She put the page down and thought for a minute. Well, Tsunade-sama didn't say when Neji, Lee, and Gai-sensei would be back, and I haven't had a vacation in months… so…

Tenten was soon skimming along the rooftops towards the looming figure of the Hokage tower. Sakura greeted her at the door.

"Are you here to see Tsunade-sama?" she nodded. "She's been expecting you."

"Thanks, Sakura-chan." For once, Senju Tsunade was actually doing paperwork, looking respectable and responsible. But the blonde looked up with relief upon seeing Tenten at the door. She quickly stacked the papers into several towering piles which she pushed to the side with visible disgust.

"Oh, good. I was wondering when you'd get here. Is this about the Emperors letter?" she nodded. "I've already sent some jounin as guards and a show of trust, but since you only just returned from the mission, I'm not sure there will be time to make the ceremony. It's a six day trip for shinobi at top speed, and the coronation is five days away."

"It shouldn't be an issue. I can use one of my summons to get there in at least half the time. Would it be alright?" the Hokage folded her hands.

"Well, it depends; I have some questions." She nodded. "First, how do you and the future Emperor know each other?"

"Uh, he's actually my brother." The Hokage blinked incredulously. "Really, we're twins. I used to live in Xing with him until I moved here."

"Really, now? And why wasn't I informed of this?"

"Well, when I first arrived, I told everything to the Third. I sort of assumed he told you." The Hokage groaned, cradling her head in her hands.

"Damn," she muttered, "Maybe I should work on that paperwork some more… it's probably in there. Until then, care to give me a brief explanation?"

"I wanted more than the life of a noble in Xing could offer me, Hokage-sama. I ran away and Ling, my twin brother, helped and covered for me. I found my way here, and I'm sure you know the rest." Nodding pensively, Tsunade looked at her.

"That's all very well, but will there be any issue with your return?" She shook her head.

"Our father died just after our third birthday and the rest of the clan will be too pleased that my brother is the Emperor to worry about me at all." I hope… she added, mentally.

"If you're sure. Back on our initial topic, his proposal seems sound. So, how do you feel about being the official ambassador?"

"I'm still thinking about it, honestly."

"If you did you do realize your loyalty would be to Konoha and Fire Country first, correct?" solemnly, Tenten nodded, holding in her excitement. "Then I leave the decision up to you. Is there anything else?"

"No, Hokage-sama!" nearly bouncing with excitement, the panda-haired jounin fought to maintain decorum.

"Very well," she shuffled through some of the papers and pulled out a mission form. "You will be marked as on an Intel mission and will receive A-rank pay." The Hokage quickly filled out the form, "I expect a detailed report. Dismissed." Bowing quickly, Tenten left through the window, missing the blonde's exasperated groan of "Doesn't anyone use the door anymore?"

"Come on you lazy little fur-ball!" affectionately, she grabbed the sunbathing cat from her spot on the windowsill. "We're going on an adventure." Irritated, the feline mewed, making Tenten laugh. "Hush, you!" Placing the cat in her carrier, she sealed her bags away in a spare scroll and tucked it into her vest. She had packed the standard gear for long term missions and her one nice outfit to wear to coronation. Well, she thought, today's improved a lot.

Taking sushi with her, Tenten headed up to the roof of the apartment. With a bit of blood from the new cut on her thumb and a puff of smoke, Ikazuchi appeared, yawning. The large peregrine falcon stretched his wings, soaking in the late afternoon sun. Tenten had found the summoning contract on the first day of the mission she'd just returned from, and already had bonded with the black and white bird. He was twice her height, and the reason she'd been able to return three days early.

"Hello, Ten," He rumbled, nudging her shoulder gently. "Trouble already?"

"Not yet, Kazu. Can you give me a ride?" focusing his intelligent gleaming black eyes on her he snorted, lowering his back for her to climb on.

"Ten, the day I can't give you a ride is the day I go bald." She laughed, holding on to the soft feathers of his back. "Ready?"

"You'd better believe it!" with a rush of wind, they were in the air, Sushi's panicked meowing making Ikazuchi chuckle.

"So where are we going?" he banked sharply to the left as she directed him, shouting over the rushing wind.

"My old home."

"I feel like there's a long story to this?"

"Yeah. It all started when I was little…"

So, what did you think? should I continue? please review! comments, questions, concerns, requests, anything!

Thanks;

TUW