Disclaimer: I do not own Sonic the Hedgehog, Devil May Cry, Omamori Himari, or Fullmetal Alchemist. All of these are registered trademarks belonging to their respective owners.

This is a crossover between Devil May Cry, Sonic the Hedgehog and Omamori Himari, although the only elements from the Sonic the Hedgehog series that I've incorporated into this story is Shadow, who will be represented as a post-Sonic '06 human mercenary, and another character that will be introduced much later in the story.

Rated Teen for strong language and violence.

Chapter 1: A New Mission

My name is Shadow. Some people know me as Shadow the Destroyer, others as the Ultimate Lifeform. I am the one responsible for the 1960s Massacre and the Eclipse Cannon Incident, and served as a key participant in Doom's Day and the Time Distortion Incident.

Ever since regaining my memories, I began to train non-stop, taking a job as a mercenary-for-hire. I have dealt with a variety of A-, S- and X-ranked missions, which usually involve either a high priority target or something relating to the supernatural. I am very well known in the world of the assassin, and others generally fear or respect both me and my reputation.

"Fuck off, you stupid kid!"

And here I was, dealing with the idiots of Devil May Cry. Oh, how the mighty hath fallen...

I let out a heavy sigh as a middle-aged silver-haired man punched a younger silver-haired teen in the jaw. Looks like the kid beat him at Street Fighter. Again. For about the fifth time in a row. To be honest, I'm surprised the man managed to quell his frustration for that long; I myself would have kicked the teenager's ass a while ago.

I tilted my head to the side as a controller flew past me and into the wall, breaking in two. "Hey, you idiots, I hope you don't expect me to pay for that..." Of course, they were too busy fighting to acknowledge anything I said. I let out another sigh, then strode over to the couch and slammed their skulls together.

"First thing: Dante, put a shirt on. I don't want clients coming in and thinking they hit a gay barn or something. Besides, you're at least 40 years old, and you're too old for that kind of thing." I then turned to the teenager. "Second: Nero, you need to give Dante a break. You know he isn't a graceful loser. Lose a battle once in a while, alright? That way nothing else will get broken in here."

Dante and Nero mumbled an acknowledgment, but I didn't trust them as far as I could throw them; I knew they'd start fighting again immediately after I sat back down. So, to emphasize my point, I drew my two handguns, Wolfgang and Darkside, and put them to their heads. "If you don't cooperate... well, I shouldn't have to say anything else, now do I?"

They quickly turned back to the television, where their game was on pause. "...I don't have a controller," Nero said.

I walked back to my seat, dropped down and propped my feet up on Dante's desk. "Well, you'll have to figure something out, because I am not going to buy another one." The two stooges grumbled, and I caught the words "bastard" and "emo". Technically I was artificially created, so I am a bastard, but I am FAR from being emo. Has anyone seen me cutting myself? Has anyone seen me moaning about my life?

Okay, yeah, there was that one time when I was trying to get my hyper-regeneration to work again, but that was entirely different.

Also, my childhood friend was murdered when I was 15, but who wouldn't moan about that? Keeping that kind of pain inside could drive a person insane; I'm living proof of that.

Regardless, I ignored their insults and looked to the front entrance as the doors slammed open. There was the third stooge; Vergil. I'll be honest, he's not nearly as annoying as Dante or Nero, but he has his moments where he is simply unbearable. Guess that trait runs in the family...

I noticed that he was carrying the devil blade Yamato, partly unsheathed, and he was glaring daggers into Dante. Nothing new, to be honest.

I was somewhat curious as to what Dante did this time, but decided not to get involved. Personally I find some pleasure in seeing the proprietor of Devil May Cry suffer at the hands of his twin. So I'm a little sadistic, who cares? That's why I'm an at what I do.

"DANTE!" I cringed slightly at the demonic echo in the blue-clad twin's voice. He was just about ready to go Devil Trigger on Dante, and would probably tear up the office in the process. As much as I wanted to see the man get his ass kicked, I had no choice but to intervene. Couldn't have the office getting torn down, after all; especially after I made renovations to it two days ago.

"Vergil, whatever it is Dante did, I'm sure it isn't anything so serious as to warrant the use of your Devil Trigger." I said in an even voice. Vergil turned and glared at me with an ferocity that would scare little children; that description was confirmed when I heard Nero gasp slightly.

"And how would you know? That little twerp brother of mine trashed my car! It looks like it was caught in a stampede of fucking elephants!"

"Twerp?" Nero chuckled a little before Dante shot him a look that immediately shut the kid up. I have to admit, Nero does have a point: only Vergil could call a middle-aged, professional devil hunter like Dante a twerp.

I kept Vergil's murderous glare with my own impassive stare. "It's a car. Everyone in this office can move faster than a car without trying, including yourself. So why are you getting so worked up about this?"

"That car was a McLaren F1. It cost me almost one million dollars, not to mention all of the upgrades I made to that damned thing. And that idiot," he thrust a finger at Dante. "Went and wrecked it to the point of it being unrecognizable as anything other than scrap metal!"

I shot my own glare at Dante before responding. "Okay, maybe that dignifies a thorough ass-kicking. Nonetheless, I repaired this hell-hole only a couple days ago, and I'd rather you don't go and destroy all of my hard work. If there's one thing I simply cannot stand," I narrowed my eyes at Vergil. "Its someone making my efforts a waste of time."

Vergil grit his teeth, but didn't respond. It was pretty quite for a while, with me and Vergil having a death glare contest and Dante and Nero just sitting there, somewhat dumbfounded and uncomfortable. After a few more seconds, the phone rang and I broke my gaze from Vergil's, slamming my foot on the table, flinging the ringing phone into the air and catching it with one outstretched hand.

"Devil May Cry," I greeted in a formal tone. Rather inappropriate, given the situation.

The client on the other line immediately recited the password, and I nodded to the others. Vergil loosened up significantly, but still had a scowl on his face. Nero immediately straightened up, with a focused look on his face. Dante just sat there with a bored expression. That idiot devil hunter...

"My name is Julian Raiser, and as you may have guessed, I have a mission for you." Julian Raiser. A regular client of mine, as well as a good friend.

"Rank?" I replied. I decided to keep him in the dark, for now. Wouldn't sit well with Devil May Cry's credibility if people knew I was the one answering the phone.

"S," he responded plainly. "To prove how dangerous I think this assignment is, I am willing to put down $10,000,000 following completion, per person involved."

I got my feet off the desk and stood up. Ten million dollars. Per person. Per person. "What's the assignment?" I asked, voice still monotone and skillfully masking the zeal I was feeling. There was a perfectly legitimate reason for my joy; if we each get paid that much, I wouldn't have to worry about financing the three stooges anymore! I'll be damned if it isn't worth taking whatever mission Julian had planned!

"Your assignment will take you to Noihara, Japan, and will be a joint case between myself and others."

My eye twitched.

Japan. The place where I was nearly killed. Four times.

I was beginning to have second thoughts about this mission, when Julian spoke again. "I have all of the transportation needs already set up. You'll meet up with one of my agents at the closest airport to your location, and when you get to Noihara we can discuss the rest of the details."

"Alright. When should we get there?" I asked.

"Two days from now. Gather all necessary equipment and weaponry. This case may very well mean the difference between a brighter future... and Armageddon." With that, he hung up.

I hung up the phone and rubbed my brow. Damn, I knew I'd regret this in the end, but... there was no way I was passing up a chance to get that much money. Even if the assignment did seem a little vague. Eh, that's Julian for you.

"Well?" Dante asked. I took another moment to evaluate the mission, then wandered to the Devil Arms hanging off the wall of the office.

"Can any of you speak Japanese?" I asked.

Dante shrugged, Vergil nodded, and Nero said yes. I nodded once; that would make this mission easier.

"Good. We're headed to Japan for our mission."

"Japan?" Vergil asked with a slightly skeptical tone. I turned and simply said:

"Ten million per person."

The blue-clad twin's eyes went wide. "Ten million? Per person?" I nodded. Vergil held a hand to his head, and Nero whistled.

"Man, with that kind of money we'll all be set for the better part of our lives!" the kid said.

"When are we leaving? The sooner we solve this case, the sooner we get paid and I can just chill." Dante drawled. That callous tone annoys me to no end.

"Our client advised us to bring some weapons with us, so I can only assume that the mission may get dangerous, depending on where the investigation ends up." I said without taking my eyes of the Devil Arms. "So I would suggest you take whatever Devil Arms you'd like."

I picked out Ifrit and put it on. The demonic soul energy within the gauntlets reacted with my own dark power and began to radiate black energy, then spread to my legs, adding a pair of greaves and altering its overall form. When the dark energy dispersed, the gauntlets were covered with the top part of a black horned dragon skull, and the fingers were clawed and black as well. The greaves looked similar to Gilgamesh, but were decorated with dragon scales and wings, and resembled a dragon's talons. I also took Pandora, the devil weapon capable of 666 different forms.

I went out the front doors, deciding to make the necessary arrangements for our stay at Japan. "We're leaving in two days. I'll see you then." I said, revving up my S-Cycle and riding off into the approaching night.

I don't know how or why but I could tell that this, in the words of Dante, was going to be "one hell of a party."