Board Thread:General Discussion/@comment-5042719-20160216202134/@comment-957629-20160304172647

OK, sorry for the confusion here but, at no point does she say that Isshin is her uncle. It may well be that he is their uncle but she does not state this. I also see no reference to Third Uncles anywhere in cultures upon looking but this is an English site so distant or third uncles don't exist, sorry.

Isshin is no longer pat of the Shiba Clan, he abandoned it and joined the Kurosaki family. Ichigo is related to the Shiba Clan but he is not a member of the Shiba Clan he was born to the Kurosaki family. Same for his sisters.