Genshirō Okikiba

was formerly the 3rd Seat of the 1st Division in the Gotei 13 under Captain-Commander Genryūsai Shigekuni Yamamoto, and is currently the co-lieutenant of the 1st Division in the Gotei 13 under Captain-Commander Shunsui Kyōraku. He shares the position with Nanao Ise.

Appearance
Genshirō has the appearance of an elderly man, with some wrinkles on his forehead and cheeks. His hair is combed back, and he has a large mustache. A streak of his hair is dyed black.

The Thousand-Year Blood War arc
When the Vandenreich attack Soul Society, Genshirō is in Captain-Commander Genryūsai Shigekuni Yamamoto's office. Stating he is leaving, Yamamoto orders Genshirō to stay behind and protect the 1st Division's barracks. Later, he is caught up in Yhwach's destruction of the 1st Division's barracks.

Later, Genshirō, having survived the explosion, is promoted to co-lieutenant of the 1st Division by Captain-Commander Shunsui Kyōraku, who wishes for him to share the position with Nanao Ise. After his promotion is approved, Shunsui assigns Genshirō to "practical business" as a lieutenant.