Genshirō Okikiba

is the 3rd Seat of the 1st Division in the Gotei 13

Appearance
Genshirō's facial features resembles those of Ginrei Kuchiki, with his hair combed back and large moustache. Part of his hair is dyed black. Sclera of his right eye also is black.

The Thousand-Year Blood War arc
Right after Vandenreich attack at the Soul Society, Yamamoto has ordered Genshirō to stay and protect the 1st Division's barracks.