Ikkanzaka JidanbouUnlocked upon completing all objectivesView character page
Objectives
Win 8 battles in a row with any of Bankai Ichigo, Dangai Ichigo, Fullbringer Ichigo lvl 1, Fullbringer Ichigo lvl 2, Fullbringer Ichigo lvl 3, Hollow Ichigo, or Kurosaki Ichigo0/8
any of these
You need to reach Shinigami to begin this mission.