User blog comment:Tinni/Kurosaki Isshin/@comment-1677140-20091116030933

The Shiba theory seems to be the best one I think, Ichigo and Ganju fight like brothers, and Kaien looks like him with black hair. But I'm feeling like having fun and spouting out my own theory. Isshin was the 11th squad captain before Zaraki, and he faked his death in order to leave the Gotei 13 to live in the Living World. That's just a fun idea I have about Issin. But the idea of him being the old 10th squad captain is a good one considering the 10th squad captain was the only one not present during Kisukes initiation (11th squad too). It'll be fun finding out what the whole deal is behind it all.