Koyanagi Shihoin

Koyanagi Shihoin is a female Shinigami the Lieutenant of the Second Division and the Onmitsukido within the Gotei 13. By her great great grandmother, Rukia Kuchiki, she is related to the Kuchiki Clan, and she married Akamatsu Shihoin, the great great grandson of Yoruichi Shihoin; she is also distantly related to the Goldsmith Clan. She has thirteen brothers and sixteen sisters. As the eldest child, she was in line to become the head of the Kuchiki Clan, the second woman to ever do so after Rukia, but she willingly gave up that to marry the man who she was in love with, which made her inelligable to lead the Clan, even though the Kuchiki's and Shihoin's have a good relationship.