Archnemesis said:
If he said "my child born in darkness" id say it was his son. He said son. There is also overwhelming evidence that Isshin is his dad. And non bar your interpretation of what juha said. And now all you can admit is that he was being vague. Im not gonna say anything more about it, you will eventually be bitchslapped by the truth.
its still not clear that Issshin is the biological father of Ichigo, and im here to post my guess, i know my guess is not factual until its said by the story, i just do not take anyting literally when its vague