In the latest episode of Bleach: Thousand-Year Blood War, the newly appointed Captain Commander of the Gotei 13, Shunsui Kyoraku, goes into the underground prison under the barracks of Squad 1, the Muken. There, while his best friend Captain Ukitake makes a deal with a God, Mimigahi, to save the Soul Society, Shunsui makes a deal with the Devil, Sousuke Aizen. Kyoraku speaks to Aizen shortly before freeing him of his seal to ask him to aid the Gotei 13 in their battle with Yhwach. Shunsui knows there's no one as powerful as Aizen except Ichigo, and they need all the help they can get.