My thoughts on Ichigo's Dad (Isshin) and why Urahara and Yoruichi left.
What I think and why.
I think that Isshin was either an accidental victim or choose to take the “special”
Gigai from Urahara. Urahara was kick out of the soul society for making a Gigai
(Artificial Body for Shinigamis) that when the Shinigami enter the Gigai
that person could not regain there spiritual powers. The Gigai was made out
of a substance that did not contain any spiritual matter thus creating a untraceable
Gigai which got him exiled.as explained by Aizen. When he is telling about his plan to obtain the Hougyoku.
I am guessing that Ichigo’s Dad Isshin was the first person to get one ofUrahara's “special” Gigai’s
Rukia being the second so he could hide the Hougyoku due to her circumstances and that she needed a Gigai.
One of the possible situation is that Urahara may the gigai special for Isshin because he want to leave because he felt in love with Masaki
and she was a human with high Reiatsu and she could see him or not. May be they just fell in love
and Isshin want to stay with her so Urahara made the “special” Gigai for Isshin thus getting Urahara exiled because the soul society found out.
Or Option two he was an unknowing test subject or willing one same ending soul society finds out Urahara gets exiled.
Because Urahara gets exiled Yoruichi leaves with Urahara because they are best friends Yoruichi decides to leave with Urahara .
Isshin says to Urahara after he kills Arrancar Grand Fisher after small conversation the only thing he couldn’t get over was his inability to save Masaki.
This connects with my theory that Isshin was in Urahara’s “special” Gigai that’s why he could not save Masaki.
Facts to back up my Hypothesis
1st:Bleach 241 page ten while Isshin is talking with Ryuken
(Ishida’s Dad) Isshin gets in to where Ryuken is at he asks him how he got in
Ryuken looks over that form your powers return Isshin responds I guess
looks good on me doesn’t it?.
2nd: Bleach 175 page fifteen While Azien is Explain his plan and the Hougyoku.
He explains about why Urahara was exiled.
3rd:Bleach 188 page 7 Isshin Conversion with Urahara and is conversation about the Arrnacars, Vaizards and Grand Fisher.
This what I think and my reasons to back them up. Also Isshin Zanpakutou is a another mystery.
Isshin may be a captain level Shinigami because of the thing he has on his is shoulder looks like a folded Captain robe this is a mystery too.
My thoughts are that he is a captain with the easy why he dispatches Grand fisher and the robe folded on his shoulder.
But nobody seems to know about him. Everything about is shrouded in mystery these are just my thoughts on the subject with some reasons to back them up.
I would like some feed back on what i wrote and what they think on the subject.