Board Thread:Questions and Answers/@comment-7638952-20130331013936/@comment-893506-20130331054531

Many people have seen a similarity between the two characters, but Tite Kubo, Bleach's author, has not confirmed if he got Äs Nödt's design from Karasu or someone/something else entirely. As such, there's no way of confirming if Äs Nödt's design was inspired by something.