User blog comment:God of nothing/Shiba clan logic/@comment-1332195-20130501062344/@comment-6207546-20130502215033

i noticed no one answered the first question so i'll try. I believe Isshin's desertion happened b4 Kaien's death because Rukia has seen him but doesnt recognize him as captain shiba. This proves that she most probably wasn't in the gotei 13 during his time. Kaien was the lieutenant in her division when she got into the gotei 13 initially. Basically my point is: she knew kaien, but not isshin .. therefore isshin's desertion happened first