Seitorō Nisshōkirite/Fanon Canon

Seitorō Shikyo Nisshōkirite no Ichinan (日照切り手・の一男・死去・星斗ロー, Nisshoukirite no Ichinan Shikyo Seitorou) is the former Captain of the Third Division and heir to the Nisshōkirite Family.

Zanpakutō
Kōsenga (黄泉牙, Underworld Fang; literally meaning "Land of the Dead's Teeth") is the Zanpakutō owned by Seitorō and when sealed it takes the form of a standard katana. When not in use it is held on his waist, horizonaly in a similar manner as the Onmitsukidō.

Shikai

 * Shikai: Kōsenga is released by the command Tear (鉤裂き, "kagizaki"; "Rip" in the Viz Dub).

Bankai

 * Bankai: Tenshushini Kōsenga (天主神殺黄泉牙, god-killing underworld fang)