My first attempt into branching out into the ABO-verse. Hope you like it.
Okay, so perhaps jumping through the portal hadn't been the best of ideas at the time and he might be stranded here, but he couldn't really complain about the results.
Even if being turned into an 'Omega' was mildly embarrassing, he had at least gotten the hang of hiding his scent and had figured out relatively quickly when to go to ground during a heat.
Honestly, he had been through far worse than somehow gaining a 'secondary gender' that would allow even a guy to become pregnant.
At this point he had stopped asking "WHY?" and had learned to go with the flow. Didn't make it any less annoying when Alphas assumed they could put their hands on him simply because he was a 'weak, innocent Omega' though.
Perhaps one should start from the beginning.
At age nineteen Tsunayoshi Sawada, the recently appointed Decimo, had come to a rather unpleasant revelation that he would never truly be happy. And that any attempts to gain such happiness would end in either dismal failure, be used against him, or would be taken from him by the people around him in an effort to 'protect' him.
Case in point, his nonexistent dating life. That had come crashing down the day his 'friends' learned that he had been using his so-called crush on Kyoko Sasegawa as a beard to hide the fact he liked his own gender more. Or he had grown to prefer guys after being stuck with far too many attractive examples of them as his Guardians and dealing with the unfortunate fact that most of the girls in his life were better off as civilians...or were firmly interested in someone else, in the case of Hana.
The problem was that most of them had paired off before he had taken up the mantle of Decimo properly, and he wasn't selfish enough to try and butt in on their relationship. It really, really didn't help that Gokudera was such a rabid guard dog and would investigate anyone he showed an interest in or vice-versa, even after the knowledge he was bisexual came out. And if they weren't scared off by Hayato's devotion to him, they were usually chased off by the overprotective idiots such as Hibari, Takeshi and for some unfathomable reason, Reborn.
The second reason he knew he would never be happy as Decimo was quite simply the Vongola. Ever since he became the new head of the family everything he said or did always came back to it. He couldn't take up any normal hobbies simply because he didn't have time.
There was always mountains of paperwork (usually caused by said Guardians who were the opposite of subtle), training so Reborn and Xanxus didn't outright murder him, or having to socialize with people who would all too happily stab him in the back at the first sign of weakness.
It had gotten to the point where the only way he'd get any free time would be to wait until the Eleventh Vongola boss was picked and he could shove it all on their heads. Which was likely going to be one of his illegitimate siblings that Iemitsu thought he didn't know about.
He knew paying Viper to track down all of Iemitsu's little infidelities would come in handy...as had the full profiles of the Arcobaleno so he had something to read out of boredom.
(Though he had to come up with a quick bullshit excuse about needing to know who to send in the event his Guardians were unavailable when Reborn found those profiles. Tsuna still wasn't sure if he actually bought that lie or not, but at least the training wasn't hellish.)
In the end, the only escape he could find from his own personal hell was the trio of "Idiot Scientists" that he kept on his payroll.
The three better known as ShÅichi, Spanner and Verde.
(He called them idiots because they kept blowing up their damn labs and causing him MORE paperwork, the jerks.)
Finding out they had found a way to harness the power of the Mare Rings to send things to alternate dimensions (Tsuna did read the reports they sent, despite popular opinion that he merely skimmed it all and signed in the appropriate places) he had known that his time to escape had come.
He just had to do it right so that he would be free of the burden that had been shoved on him by the incompetence of the Ninth generation.
First had been going into the Vongola rings and making Giotto see some damn reason about the whole succession issue. Namely the fact that he would rather hand over the title to Xanxus who actually wanted the damn job than to any of his half-siblings because he had the sneaking suspicion his idiot father would turn them into pawns for himself.
When given the choice between the disaster of having a pawn at the helm of the family or an illegitimate child that had dubious heritage, the choice was obvious.
On an unrelated note Xanxus was either going to be a very happy camper or pissed at being saddled with Tsuna's problems. Once the final preparations were complete he was not doing anymore of that damn paperwork.
Second had been actually contacting Xanxus and by extension Viper...who he then bribed to keep their damn mouths shut because he didn't trust anyone at this point not to blab and ruin his escape.
The moment Xanxus found out he was being dead serious and that he had 'dealt' with the issue that kept the man from claiming the rings for himself (which he quickly proved by having Xanxus put on the Sky ring, except this time he didn't spit up blood when he tried to channel his Flames through them) they set about a scheme that would make Xanxus 'de facto' Decimo until Tsuna "returned" from his vacation.
The fact that Tsuna had no intention of actually coming back was just a little detail that he hoped no one ever figured out. His 'guardians' and Reborn could be damn persistent when they wanted to be.
Xanxus was decidedly more cooperative after that particular discussion. And that was before he made Viper teach Tsuna how to access his limited Mist flames to create a pocket where he could store things in.
That had taken Tsuna two months to figure out before he could use it consistently without losing anything.
As such he now had plenty of cash, a few pieces of technology that he didn't want to leave behind (like his laptop and phone, plus duplicates), enough clothes to last him a month before he had to wash anything, a secondary Sky Ring Xanxus had cheerfully helped him to acquire to replace the Vongola ring (it wasn't tied to any famiglia), and of course several blueprints such as the odd 'devices' that allowed the Arcobaleno to become free of their curse along with an upgraded version of the Box Weapons.
If he was going to an alternate dimension similar to the one he was born in, then he damn well wanted some leverage he could use! Especially if it was to keep the Vindice off his ass.
Tsuna kept his plans quiet, while he plotted with Xanxus to give the man the title he had always wanted in a way that the Ninth generation couldn't swoop in and steal it from him. He wouldn't put it past Iemitsu or Timoteo to ruin everything, even if they were forcibly retired at this point.
Once the device was ready for human trials, Tsuna waited for the idiot trio to be too tired to realize who had volunteered to try it out for them and made damn sure the note would be found by someone who would follow orders.
Hayato knew Tsuna was stressed beyond belief, and that he was trying to do enough work to get a small vacation. So once the Storm found the note odds are he'd assume Tsuna had decided to take a rare opportunity to get away from everything and would be back within short order once his stress levels had gone back down.
No one would question it until Xanxus finally clued them in, or someone paid Viper enough to get the truth.
It said far too much about the situation that the moment he had a chance to call it off, to drop the entire thing and go back to his own personal hell, that he hadn't even thought twice about jumping through the portal.
Even if he really should have asked the trio what sort of world they had picked for the first human test.
Tsuna sighed.
At least he wasn't doing paperwork anymore.
It was a scent that was driving him absolutely nuts. It had started sometime after he had gotten to the park, and he had attempted to ignore it by getting some gelato.
It hadn't helped. By the time he finished his icy treat, the scent had only gotten worse...so much so that he had no idea when he started walking towards the source, driven by instinct.
His Hyper Intuition was positively purring, so he hoped that it wasn't something bad or humiliating.
It wasn't until his shirt snagged briefly on a branch that he realized what he was doing. Still, he was far out enough that he might as well follow it to the end.
What he found was not good for his mellow, because why the hell was he following Fon's scent?!
How? How in the god's name did he find the ONE park where Fon would be meditating in private only to follow that weird scent straight to him?! He had been trying to avoid the underworld outside the times idiot Alphas got all grabby on him simply because he was an Omega!
Those jerks deserved to get robbed, and at least his luck was 'nice' enough to insure a healthy amount of Flame rings to loot off their unconscious bodies on top of the cash he took from them.
Before he could even think of leaving, of saying nothing, Fon spoke up.
"You know it's considered very rude to stare," he commented.
"Sorry, I didn't mean to disturb your meditation. It was just the scent was driving me nuts and I followed it without thinking," Tsuna babbled.
Fon slowly opened up his eyes to actually look at him now. There was an odd curious glint in them.
"My scent drew you here?" he asked, openly interested now.
What Tsuna was unaware of was the fact that when an Alpha released their scent like Fon had, it was usually a sign to get lost, because he wasn't in the mood to be disturbed. However there was a select few who would be attracted to it instead of repelled, which was usually a strong sign that the two were compatible. Especially if the one drawn to it was an Omega.
And Fon's scent was particularly vocal of what a bad idea bothering him would be, so the fact Tsuna had followed it instead had caught the man's open interest.
Though since he hadn't been born to that world, merely dropped in, Tsuna had absolutely no clue how important scents were to others. He just kept a clamp on his own because he thought it was part of his Flames, and he wanted to avoid being harassed because of Sky attraction.
As such he was entirely unprepared for the new...stalker...he had acquired simply by following his nose and his Intuition.
At least it was someone he knew he could tolerate, rather than one of the more grabby Alphas that had been harassing him of late.
Fon POV
The little Omega was far more interesting than his fluffy appearance suggested. Every time a particularly grabby Alpha tried anything with him, he would lead the fool to an alley before somehow startling them and knocking them out.
No Alpha that overbearing would ever admit to being knocked out by a tiny Omega and then robbed. Though he was curious as to how the little Omega knew to steal the rings, even if he left others alone.
Almost as if the boy knew about Flames, if he targeted those specifically. Though how he startled men that he knew for a fact were experienced mafioso long enough to kick their ass... that was a mystery he'd love to solve. He had the feeling it was something worth finding out.
Though he would admit, while the Omega was somewhat competent when it came to hand to hand fighting, his form was absolutely terrible. Almost as if he was fighting purely on instinct with no actual training of worth.
Fon felt particularly vindicated for his interest when the little Omega managed to give him the slip for all of a minute before busting him.
"You've been following me for the past week. Why?"
"You actually noticed me?" said Fon with well hidden delight. It took skill and good instincts to notice him when he was being extra discreet.
The teen gave him an unamused look.
"You've been watching me off and on. It's rather distracting and I keep looking for where you are," he said flatly.
Well that explained how the boy had known the general direction he was in. The teen would appear agitated until his focus settled in a rough estimate of where Fon was at the time, before calming down and continuing on his way.
It was fascinating how he had done that with such consistency.
"My apologies. It's just no one has ever been drawn to my scent before. I was curious."
The teen relaxed sightly at that, sensing his honesty.
"Well you could have just 'bumped' into me at the coffee shop or something. You didn't need to continuously stalk me for several days."
Fon's smile widened a bit in amusement.
"May I at least have your name?"
"Natsu," said the teen. "I'm going to guess you're Arashi, right?"
Fon's interest perked up even more at that.
"You speak Japanese."
And somehow instinctively knew Fon was a Storm, he didn't add.
"I'm half Japanese and I was raised there. I will never understand the Italians fascination with coffee, when tea is superior."
Fon officially liked this Omega. Not only was he somewhat skilled, but he knew which drink was superior.
"I know a good tea shop nearby. Care to join me?"
Something inside him started dancing with glee when Natsu agreed. And it only got better when the teen admitted he had an interest in martial arts, but couldn't find a decent dojo to practice in because he kept having to deal with grabby Alphas that wouldn't take the hint.