Kaien Shiba, a victim of Aizen's Hollowfication experiments, was related to Ichigo through Isshin Kurosaki. Rukia's decision to give Ichigo her powers was emotionally driven by the resemblance ...

And that is to die alone." The father of Kaien, Kuukaku, and Ganju is the brother of Isshin Kurosaki, former captain of Squad 10 and the father of Ichigo, Karin, and Yuzu. This would make Ichigo ...