Quote Originally Posted by Zero View Post
^ I think that there would have been some mention that they had yet another brother... especially one that mysteriously disappeared (beside there is a mention of an Unlce that has ties to Ichigo in the recent training arc). Then again, knowing Aizen he might have pulled his Illusionary Zan and framed, then executed illusionary covered up agent, in order to cover Ishin's tracks so that he could observe him and the Quincy with easy and relax, without anyone bothering to search for him.
i've understood that that "uncle" was refering to kaien...since ichigo resembles him not only physically but in personality