Uryū Ishida

As a child, Uryū mostly interacted and trained with his grandfather, Sōken Ishida. His father, Ryūken Ishida, was less than enthusiastic about being a Quincy, claiming that it wasn't a profitable occupation. They don't appear to be on very good terms as a result, given Uryū's casual use of his father's given name, which is considered very rude in Japanese society. Sōken understands Ryūken's reasoning, since being a Quincy is more about justice than material rewards and Ryūken has a family to support. Sōken told Uryū that he would someday understand his father's motives, but thus far this isn't the case.

At a fairly young age, Uryū's grandfather was killed by hollows right in front of him.[7] This is one of the reasons he hates Soul Reapers, who, despite keeping the old man under near-constant survellance, didn't come to rescue Sōken in time.[7] He long believed that the Soul Reapers were merely taking advantage of circumstances to be rid of him. It was later revealed that the current captain of the 12th Division, Mayuri Kurotsuchi, was behind the delay so that Sōken's soul could be collected for study