User blog comment:Lia Schiffer/397: Edge of The Silence/@comment-1337270-20100325202429

I think that this is a perfect way to setup the ultimate showdown between Ichigo and Aizen. With Isshin stepping in it will explain why Ichigo is so strong and now it will give background into what happened to Isshin and why he left G13. Plus it can also setup Isshin training Ichigo to master his own abilities due to the fact the Isshin has experience with Arrancar and Shinigami abilities. Plus he knows of Aizen as well so he can train Ichigo on fighting him.