Disclaimer: I don't own neither Naruto nor Bleach.
Summoning the Shinigami
...OO...OO...
Minato was feeling anxious. What was supposed to be the best day of his life had rapidly turned into a nightmare when that masked man, who he suspected of being Uchiha Madara, appeared, took his newborn son hostage and freed the Kyuubi from its prison. He had managed to save baby Naruto and drive Madara off, but he failed to kill him. He couldn't help but imagine what would that relic do once he came back and it would have made him shake in fear, if he wasn't already beyond that point.
And now he was preparing to summon the Shinigami in a last-ditch effort to prevent a complete disaster. He couldn't help but remember an old saying: All good and bad things come in groups of three. Today it had been first Madara and then the Kyuubi. He could only hope he wasn't going to summon something even worse.
Here I go, he thought. His hands quickly formed the necessary seals:
Mi, I, Hitsuji, U, Inu, Ne, Tori, Uma, Mi.
The air behind him shimmered and he could feel a presence appearing. He looked over his shoulder and saw an ordinary-looking man in black kimono and white haori with a sword on his side wearing rather nerdy glasses.
Well, he at least looks harmless.
...OO...OO...
Only long years of practice prevented Aizen Sousuke from showing any emotions on his face. Instead his expression was set on his default benign smile. Inside his emotions were churning. He really didn't appreciate being interrupted in the middle of devising his master plan to bring down the Gotei 13. And he also didn't like being dragged anywhere without his consent. But he was a patient man. He could wait before extracting his revenge. The delay would make it that much sweeter.
He surveyed his surroundings to discern what was going on. In front of him stood the man who had apparently summoned him. And behind him... he had a hard time not to let his excitement show. There was a spiritual being of immense power, destroying everything in its path, shrugging off attacks like they were nothing. Aizen felt his mouth water. Now if he had this in his army when he attacked Seireitei... it wouldn't be quite enough to grant him victory, but it would occupy several captains and do a lot of damage. And maybe he'd find a way to harness its power better or even duplicate some of the effects. Oh, the things he could do given enough research time.
Yes, it was decided. He was taking this creature to his new hideout in Hueco Mundo. Now how to do it? It probably wouldn't want to go. But if he found something he could use to lure it into the Garganta... yes, that sounded like a plan. The bunch of mortals trying to stop it seemed usable.
He looked at his summoner. What should he do about him? Well, he didn't go so long undiscovered by leaving witnesses.
...OO...OO...
It was a sad day in Konoha. First the Kyuubi attacked and then their Hokage died. The village was saved, but no-one could ever figure out what happened to the demon. They lived in fear that it would return.
...OO...OO...
In Hueco Mundo, Aizen allowed himself a self-satisfied smile. It took a lot of time, effort and minions and he had to rebuild Las Noches twice, but the results were well worth it. The power of the Nine-Tailed Kitsune was finally his. With it, he could speed up his plans. Yes, the pathetic shinigami won't be able to stand up to him.
The halls of the palace shook with maniacal laughter.