Board Thread:Questions and Answers/@comment-68.13.178.59-20160829080618/@comment-8695373-20160829113336

According to Rachel, Izanami is Amaterasu's Drive. Why she does what she does is known only to Arc System Works, and we here are just fans of the series, like you. When we'll get the answer, we'll add it to the pages, but until that happens you can post your theories on the forum.