Thread:Silver-Haired Seireitou/@comment-5778280-20151022012026/@comment-2089817-20151022052428

Replacing Shikai and Bankai with Shinuchi is perfectly fine. It actually aligns with my theory on the relationship between Hakuda Masters and their Zanpakuto. This is what I told Nanja and Void when I thought up the idea:

''The relationship a Hakuda Master would share with their Zanpakuto would be vastly different than a Zanjutsu Master. Zanjutsu views the relationship between the sword and the wielder as a partnership, and each pair defines that partnership individually. But Hakuda master would see the relationship as a master and student. And in martial arts, the master must be succeeded by the student. Sei would have to eventually defeat Hanullim to surpass him, and this would lead to their parting, much like a disciple's "graduation" from their master.''

I theorized that this may have happened with Yoruichi, which is why she no longer carries her Zanpakuto, and what has happened with Sei, which is why he can no longer access Shikai and Bankai.