Chapter 136: Captain Examination
After the initial excitement faded, Aizen found himself contemplating a more pressing concern—Masatsuki Aozaki.
With his overwhelming talent and intelligence potentially on par with Aizen's own, he could become an even greater threat in the future than Shigekuni Yamamoto.
But a collapsed secret chamber wasn't enough to prove that Masatsuki had actually developed anything.
It was just as likely that he had destroyed the site to prevent his research from being discovered.
After all, being the Captain-Commander's disciple made him a particularly sensitive figure, and Yamamoto himself was an infamously stubborn man.
Besides, Masatsuki wasn't someone Aizen could move against lightly.
Thinking about the people gathered around him, Aizen felt an impending headache.
None of them were easy to deal with.
Yamamoto's strength needed no explanation. As his disciple, if Masatsuki were to be harmed, an investigation would be inevitable—potentially undoing years of careful planning.
Kirio Hikifune and Kisuke Urahara were formidable in their own right, with Urahara in particular being an intellectual rival, perhaps even surpassing Aizen himself.
And to make matters worse, Kirio was accompanied by a Zero Division member.