久保帯人
is a fictional character and the main antagonist of the first half of the manga series "Bleach" (and the most significant one for the entirety of the anime adaptation) created by Tite Kubo. He is the captain of the Fifth Division when he is first introduced. He later betrays the Soul Society, before Ichigo Kurosaki and Kisuke Urahara defeat him. His former lieutenant is Momo Hinamori.