Shinigami Women's Association

The Shinigami Women's Association is an organization of Shinigami women, most of the members shown are higher ranking Shinigami in Gotei 13. It's president and vice-president are Yachiru Kusajishi and Nanao Ise respectively. Other members inlcude Nemu Kurotsuchi, Soifon, Kiyone Kotetsu, Isane Kotetsu and Rangiku Matsumoto. Their supervising chairperson is Retsu Unohana. Initially meeting in a conference room, the club eventually creates their own headquarters hidden away within the estate of Byakuya Kuchiki (much to his chagrin).

The Shinigami Women's Association is notable for pushing for various means of improvement of all Shinigami. When not hanging out for their own purposes, they have been known to work on various items both to help out others as well as raise funds. However, most of the major decisions and means in creating these items usually falls on Yachiru, who ends up having the most say in the matter. When pursuing a new design for cell-phones, Yachiru ignored the rest of the club's suggestions and ends up choosing a cute bunny style that only interested her (and Rukia). Another incident involving creating a "popular Shinigami calendar" ultimately lead to Yachiru taking nearly all of the targets, but with nearly all of them blocked off by Kenpachi's hair (outside one successful picture of Ukitake taken by Kiyone and Soifon). Unfortunately, since Yachiru controls all funds for the club, she spends all of it on toys and sweets for herself.

Outside Yachiru, Nanao is another prominent member of the Shinigami Women's Association both as vice-president and as it's key spokesperson and representative. She usually is the one who gets in conflict with Shinigami Men's Assosiation leader Tetsuzaemon Iba over the similarly outlandish activities their opposing club performs. However, Yachiru occasionally sees a closer ally in Nemu, who shows more loyalty towards the president and assists her in various schemes, including the creation of new Soul Candy which replaces the personality of various members of a task force taking on the Arrancar (including fellow member Matsumoto as well as Renji Abarai, Tōshirō Hitsugaya, Ikkaku Madarame and Yumichika Ayasegawa) with bizarre substitutes while they are on duty.