User blog comment:Wolf night10/The Final Getsuga Tenshou/@comment-1961713-20100611160918

Byakuya says only noble family members that are always exceptionally talented have only a member capable of achieving bankai every few generations only etc etc etc maybe they were indeed noble blood the Kurosaki Family, dad deemed former shinigami captain but unknown division and son substitute shinigami by accident-refer http://www.onemanga.com/Bleach/162/07/