User blog comment:TVthePunisher/Isshin and Masaki - Just a Theory/@comment-44061-20100529042314

Your theory is totally devoid of established facts.

1.) Isshin lost his Shinigami powers 20 years ago and Ichigo is only 16, so there is no way Masaki was pregnant with him when Isshin lost his powers.

2.) Urahara was the one behind Isshin losing his powers.

3.) It is already stated that he is the child of a Shinigami and a human. so Isshin being a Shinigami and Masaki being a human.

4.) Aizen said he knew of Ichigo's existence since birth but only actively involved himself when Rukia came to Karakura town. He wasn't involved in Grand Fisher or his attack.

5.) Grand Fisher was infamous for over 54 because all hollows arent stupid there are plenty that fit the bill. Captains and lieutenants cant take on every dangerous hollow otherwise there would be none. They have other stuff to do. There is no shred of proof to assume that it was mere coincidence that Grand fisher became an imperfect Arrancar.

6.) Isshin just randomly regained his powers, it was just as a surprise to him that he had.

7.) Ryuken never lost his powers he just chose not to use them.

All of this is explained in either the articles and backed by the manga. Anything else such as what you said about Hikifune is a crack theory and not allowed anywhere on the site. Also spoilers are only allowed on the spoiler page, putting spoiler warnings up don't justify them.