User blog comment:Xilinoc/Ch. 566 (not out yet, but dis gon b gud)/@comment-2211792-20140203180111/@comment-26420452-20140203181116

Isane used Kaidō even before, on Hanatarō, Rukia and Byakuya. But as we discussed before with Xilinoc, it's the first time she's shown using it, and not just being implied.