User blog comment:BU1898/Bleach: So Many Questions/@comment-1982694-20100530000119

Okay, the first two questions were right on the money. What Urahara said to Ichigo most likely was a hint as to what it does, and Urahara did most likely know what Aizen was up to, based on what Shinji said at the end of the TBtP mini series. And the theory on The Getsuga technique being just a manipulation of energy is also likely, though I'm not entirely sure about it. Also, yes, Isshin is most likely former captain of the 10th squad, though that has yet to be proven. And I agree that Gin is a mysterious character, and I too am wondering what side he's on and what he has to gain from all this. But I have two problems with two of your questions. One, I don't think Misaki was a one of the quincy's. Although it may explain a few things, it's probably just speculation until we learn more about Isshin's past. And Isshin being part of the Shiba clan is slightly farfetched, because, unless there's anything to disprove this theory, Kaien was the clan's head at the time and Isshin probably had enough power at the time to be the clan's head over Kaien. That's all. Very interesting questions, and I hope you have a good day.