Bleach is one of many Shonen action anime where the protagonist's lineage provides substantial insight into not just their heritage, but the story's broader lore and sometimes even its combat system. In Bleach's case, protagonist Ichigo Kurosaki has inherited practically everything this world has to offer, though he has no idea about it in the beginning.
Source：https://www.cbr.com/bleach-kurosaki-family-tree-explained/
