First of all- this was supposed to be an oneshot, but you guys wanted more so I went with drabbles that ARE NOT ALWAYS IN ORDER. I am messing with stuff like ages and all of that just so you all know. If it takes place out of order I will let you know. Right now we're still good however.
O~O~O~O~O~O~O~O~O~O~O~O~O~O~O~O~O~O~O~O~O~O~O~O~O~O~O~O~O~O~
Xanxus is possessive. He knows he is, it's something he's known since his 'first' go around when he was on the streets, before Nono took him in when he had to guard what was his and what was his usually meant the difference between dead and not dead. (His blanket, his food, his water…)
Getting pulled into the Mafia only made that worse especially since his 'opponents' here were much stronger than other street rats which meant sometimes, in the beginning, Xanxus didn't win, that he lost what he had because someone was stronger or more cunning and managed to take whatever it was. It made what Xanxus managed to keep all the more precious and his.
Then he ran into Squalo- found his Rain. Xanxus was bad about being possessive all on his own, adding in the possessiveness that came with the territory of being a Sky? That was where the first hints of what Xanxus would come to call Varia Quality were born- in the lengths Xanxus drove himself to simply because he remembered not being good enough to keep what was his, and he refused to lose his Elements to anyone so he needed to be the best so Xanxus fought to be the best.
Elements were possessive on their own, so Squalo had driven himself into the ground right beside his Boss because he refused to be taken from him. Xanxus was his Sky and Squalo had honestly thought he would never find a Sky that would want him in all his Inverted Rain glory, but not only had he found one, he had found his True Sky, the Sky that he would fit best with period like jigsaw pieces snapping into place, and like hell he would allow himself to be pried from Xanxus' side. This was a trend that continued with each new Guardian Xanxus gathered, each of them driving themselves into the ground so that they could keep up with Xanxus.
It made Xanxus worse because nothing made a Sky happier then Elements that wanted to stay with them, that would fight to stay with them and with every time his Elements drove themselves into the ground so that they could stand higher the next time they got up, so they could fight to stay with him they proved they were happy to be his and that caused Xanxus' Flames to purr.
Skies were rare- everyone knew that. A fraction of those that knew about Skies at all knew that Skies could Harmonize with other Skies. When this happened it was usually due to one Sky seeking protection from the other or looking for support and guidance. Tsuna had had one of his Elements- the very pillars that supported a Sky- forcibly taken and his entire being had rebelled and tried to shatter, he had reached for support, for guidance and protection while he grieved over his Lightning, had Harmonized with Xanxus whist looking for that support- out of all the Skies there and there had been at least three others that were not Xanxus, Tsuna had reached for him. Tsuna became one of his and was in the direct line of fire for the Solecorvo Famiglia.
So the Solecorvo?
Xanxus wanted these fuckers dead.
He wanted them eradicated.
They had hurt one of his. Had hurt more than one of his.
So it was rather simple.
Xanxus would turn them into ash.