Genflip! Sibling Gakuen AU. Various couplings: SpainRomano, Englandfem!Japan, fem!Polandfem!Lithuania, etc. More couples may emerge or change along the way.

Disclaimer: If Hetalia were mine, I wouldn't be here. And this disclaimer stands for the rest of this story.

Lovino Vargas hated Tuesdays.

To be honest, he hated every other day of the week as well, but his loathing for Tuesdays was the greatest. Each and every Tuesday was worse than the last.

(Of course, the second Tuesday of last January was the most mortifying… No, he wasn't going to remember that.)

Anyways, Tuesdays were a bitch.

First of all, he had stupid Home Economics class with the fucking potato bastard. And said potato bastard would be sitting to Lovino's little sister every single damn time. They were practically glued together—against Ludwig's own will, but that was beyond Lovino's care—like they thought they were some couple or something (and Lovino did not know that everyone else in the school save for himself recognized the two as an item).

Frustratingly enough, the potato bastard wasn't the only bastard in the class.

There was the idiot American girl who just couldn't shut up, and the Brit who tried to shut her up. Tried. Then, situated at the back of the classroom, was always the damn creepy Russian. It would have been bearable (even though that kol kol kol sound was really disturbing) if only the Russian creep's incestuous sister hadn't taken up the class as well.

Why the hell had he chosen this out of all the fucking electives at his school? Where he had only one damn elective and electives were the only reason a sophomore would have class with juniors? Oh yeah, because Feli had wanted to take it. And Lovino, grudging as he was, had to keep an eye on his sister and that fucking potato bastard who just grabbed his sister's wrist!

"You fucking potato bastard! Get your hands off my sister!" Lovino screamed as he raised the knife he had been using to chop the carrots.

Ludwig eyed the shining knife and the murderous glint in Lovino's eyes with apprehension somewhat akin to fear.

"Ve~ Fratello! Don't kill Ludwig!" Feliciana cried somewhat unconvincingly as she cowered behind the German's back.

"Ooh~! Is this war? Is it war? Can I be the commander of our team?" Alyssa Jones squealed.

"Now is not the time, Alyssa," Arthur Kirkland admonished her.

Lovino's fury only climbed higher when her heard snickers and voices behind him: just more reason to hate Tuesdays and Home Economics.

"Someone is angry today, non?"

"I'd say that he is jealous that his sister has a boyfriend while he doesn't!"

The French pervert and the potato bastard's brother were going to be victimized by Lovino's knife right now. The potato bastard could wait. The teacher wasn't going to stop him; she had given up on restraining any of the students a long time ago. Specifically ever since Natalya had shown the class what exactly was held in that bag of hers…

"Lovi, the onions are done! We should start on the lettuce now."

Lovino jerked his head back to glare at his cooking partner for the day. Amiable green eyes were looking back expectantly with that ever-present smile stretched on handsome features. Lovino briefly considered aiming the weapon at the Spaniard before negating the idea—he already tried once and the idiot hadn't even flinched.

"Back off, bastard. I'm going to dispose of those rotten potatoes first." Lovino growled.

Antonio Carriedo looked mildly puzzled. "But Lovi, we don't use potatoes in this recipe."

Apparently the idiot didn't realize that his best friends were on the verge of being murdered. Lovino scowled and debated between using the knife as a culinary tool or a murder weapon before he decided to go with the former. The latter could be performed after the cooking was done.

Shortly later, during second period, Lovino chewed his lip in frustration at how his plan to rid the world of evil—which took form in perverted Frenchmen and potato bastards that couldn't keep their hands off his sister—had been dashed to bits. Again.

"Cheer up, Lovino! At least none of them are in this class." Im Yong Soo was performing his weekly ritual of cheering Lovino up.

And like every week, Lovino's response was the same.

"Which means that I can't keep an eye on that potato bastard while he has World History with Feliciana!" Lovino snarled. Yong Soo didn't even bat an eye.

"So keep your mind off of them as well." The Korean shrugged. "C'mon, Matthew saved us a table! If we don't get there fast, people are gonna start sitting down because they won't notice he's there. Then we won't be sitting together!"

Lovino rolled his eyes. "And why would I want to sit with you guys?"

"Because we're the only ones in our entire Physics class who don't get on your nerves?" and who can tolerate you?

But Yong Soo omitted the last part; he didn't need a homicidal Lovino on his back.

"...Valid point," the Italian grumbled as he heaved his backpack onto a shoulder.

When the two arrived at class, Matthew Williams waved them over to the (thankfully) empty table. As the Korean and Italian took their respective seats, Matthew handed Yong Soo a calculator.

"Your sister told me to tell you that you should bring your own calculator instead of asking for it during the first block. And to stop asking for it via text messaging during the lesson."

Yong Soo grinned and dropped the device into his bag. "Well, Kiku has ninja skills. She can handle a few messages under a teacher's nose."

Matthew sighed. "You sound just like Alyssa."

"Of course I do. She's the one who said so!" Yong Soo said.

The Canadian soundlessly buried his face into his palms. Lovino snorted.

"Who would think that Matthew was actually that hamburger addict's twin and a friend of the kimchi kid?" the Italian suggested with an amused smirk.

"Hey, you're my friend too!" Yong Soo pouted.

"I am not." Lovino stated.

"Yes you are! Scratch that, we're probably your only friends—"

"What did you say, you bastard?"

The whole class turned to watch the Korean and the Italian bicker (it was a weekly show that ended up with everyone betting over who would win the argument of the day) while a certain Canadian sank into his chair. Thankfully, nobody took notice of him.

"Um, guys…" Matthew mustered the courage to intervene. "Class started, and the teacher's here…"

Of course, nobody heard him.

"I'll strip his Korean ass and turn it into a bloody piece of Swiss cheese!" Lovino scowled as he plopped down into his seat after lunch. Matthew slid into the seat beside Lovino with a small chuckle.

"You said the exact same thing last week." The blonde pointed out.

"Because he got us into lunch detention last week too!" The brunette snapped.

The rather loud exclamation was met with a glare from a girl who had been lazily drawing patterns on the desk with her finger. Matthew smiled apologetically to the Norwegian.

"Well, Yong Soo is always like that…"Matthew murmured.

"Always idiotic, obnoxious, bratty Korean." Lovino grumbled in response. "How the hell did he get into High Level Math?"

Because he's Korean? Matthew mused soundlessly. There was simply no use pointing such things out to Lovino; it only gave him more things to rant about. Matthew decided to change the topic.

"Well, at least Feliciana is in this class." And Ludwig isn't. Thank God for small favors.

"As if I want to be in a class with her," Lovino said. But the grumble was half-hearted.

"Having a sister your age is a good thing," Matthew agreed with the silent sentiment.

That was perhaps why such an odd trio had been formulated in the first place. Lovino, Matthew, and Yong Soo all shared a unique fact in common: they had sisters the same age as they were. While Matthew and Lovino had twin sisters, Alyssa and Feliciana, Yong Soo had his step-sister Kiku.

To be truthful, Matthew was glad for those sibling relationships. After all, Lovino and Yong Soo were nice to befriend once you got used to them…

"Ve, fratello! Guess what Ludwig gave me today!" the cheerful half of the Italian twins burst in.

"The potato bastard what!"

Well, even though it took a lot of time to get used to Lovino's temper (and Yong Soo's groping)…

It was the last period of the day, and Yong Soo could see the Tuesday take its toll on Lovino. The brunette was muttering Italian at an incoherent speed—not that coherency mattered; they were probably swear words anyways—as he lay face-down on the desk.

In short, Lovino looked pretty wiped. Even his curl looked like it was drooping a bit.

"You okay?" He didn't want to ask. He didn't want to hear. He didn't want to know. But letting Lovino keep it in was worse than stashing porn under the bed. While the porn may overflow at worst, Lovino exploded. Complete with fireworks and colorful swear words and violence.

Letting the steam out was the safest choice.

"No. I. Am. Not. Okay." The Italian ground out.

Even though an adequate amount of damage would be inevitable. But it was worth it. …Right?

"I had Home Economics with a pile of bastards, got lunch detention again with you again, got my ass kicked in dodgeball by that hamburger monster friend of yours during PE class, had a fucking Math test, received a load of Spanish homework, and now I have fucking World History with you!"

Yong Soo was sure he was going to go deaf at a young age. He'd need hearing aids after having sonic blasts from Lovino every Tuesday.

"I'm sure it can't get worse." Yong Soo placated the Italian. And himself. If anything worse happened, Lovino would surely open the door to hell. And Yong Soo would be sucked into it.

No, nothing better happen.

"Excuse me~ Did anyone see a small yellow bird in here? Alguien?"

Oh. Oh fuck. Hell no.

Lovino's eyebrow twitched as he slowly raised his head to aim a glare that promised the apocalypse towards the doorway, where a certain oblivious Hispanic upperclassman was repeating his query. Yong Soo stopped breathing.

"Did anyone see Gilbert's yellow… Ah, Lovi!" Antonio was clueless about the murderous potential held in Lovino's icy glare.

"You…." A corner of Lovino's mouth twitched. "…Bastard….!"

Friendship was awesome. Yes, Yong Soo thought that friendship was priceless. But his life wasn't worth it. Nope, not at all.

The Korean fled the classroom without a glance back as Lovino's infuriated screech echoed through the halls.

"Ha! Now you own me ten bucks!" The albino cackled.

"Mon ami, that bet was too easy for you." The blonde pulled a bill from his wallet with a sigh.

"All the more why I bet on it! You could hear the kid from anywhere, ha!" The winner was positively delighted.

The small bird on his head chirped.

"That's right Gilbird! I'm too awesome to lose a measly bet!" Gilbert Beilschmidt grinned with malice.

Francis Bonnefoy clicked his tongue. "Antoine needs to be a little more perceptive. He should have noticed that the bird was on your head when you asked him to find it for you."

Gilbert simply laughed. "Too bad he didn't notice! Anyways, he just needed a damn excuse to go see the kid he's so smitten with."

Never mind that the boy who the Spaniard was so smitten with was endangering said Spaniard's life at the very moment.

"You idiot, stupid, bastard! Fucking bastard!" Lovino screamed with a chair in one hand, stapler in another.

The entire class had backed out of the room, which now looked like a haphazard tornado had torn through the premises. The only occupant of the room other than Lovino was Antonio, who was somehow miraculously unscathed. Not only was he unharmed, but he was smiling widely.

"Lovi~ You're face is like a tomato! Bonito!" Antonio nearly cooed.

Scratch that. Maybe the guy had been whacked on the head.

Lovino's voice was dangerously low as he growled, "Bastard—"

"Lovino! Antonio! The classroom is a mess! What have you done?" A female's voice interrupted.

Both who had been named turned to face a blonde girl with her hands on her hips. Antonio brightened up—how he could become even more cheerful than his prior state was a mystery—and greeted the newcomer, "Hola, Belle!"

Lovino seemed infinitesimally calmer as he also acknowledged her presence, "Hi."

"Well, you two can talk it out later. Right now, Antonio, you come with me. We need to finish the lab right now or we get an F!" Belle grabbed hold of Antonio's sleeve and started to drag him off.

As the Belgian girl forced him up the stairs, Antonio managed to turn and yell over his shoulder, "See you later, Lovi!"

Lovino suppressed the urge to go strangle the idiot and chose to place the chair back on the floor instead. He sat down on it and glared at the rest of his class.

"So are we having class or not?" Lovino demanded.

Probably not. At least until the classroom was restored to its original condition.

At the other end of the building, Roderich Edelstein sighed. He didn't have much time left to be the student council president, and he was glad for it. The reason mostly belonged to the fact that there was a mass destruction of some sort on campus once every week.

To be specific, once every Tuesday. Roderich didn't want to handle any more complaints and repair bills and threats from Vash regarding the peril of school funds.

All in all, Roderich Edelstein hated Tuesdays.

/ Oh dear.

Yes, DPZ has done it again. I've started another story. And this is the longest one planned yet. I was writing other stuff, but the inspiration hit me and here we are. This is one huge project. I hope I finish it...

So this is my first Hetalia fic :) I wasn't planning to start off with such a longterm project, but writer's instinct takes you there. I'm enjoying a lot of this, especially how the Lovino-Yong Soo-Matthew trio are just hitting it off. They have so many similarities and relations (historically and personally) that I would love to exploit thoroughly. Also, having everybody as siblings was complicated but exciting for me. I just hope I don't mess up. The plot is developing slowly (I already threw out a hint of the chaos to come. anyone spot it?) but surely.

I had the POVs rotate through each 'brother' of the trio (there are plenty of brothers here anyways) for this chapter, but I might stay fixed on POV starting from next time. If you have any suggestions/criticism/compliments please tell me!

Oh, and about Yong Soo in High Level Math... There's this stereotype (and fairly true statement) that Korean's are good at math. Just thought I'd put it to use :P

Fratello = Brother

Alguien = anybody

Bonito = cute