Aijiro Inue

Aijiro Inue, former name Nobutaka Takeda (武田信贵), is a mysterious Bushi and a member of the Obsidian Eight. It's later revealed that he is also the older brother of Naotora Takeda who was supposed to be killed at the previous war 15 years ago.

Kitetsu Sword
Aizen Haba Yumi : Aijiro's Kitetsuto is a bow.

Etymology

 * The name Aijiro means "indigo" (藍) (ai), "two" (二) (ji) and "son" (郎) (ro).
 * Aijiro's surname Inue means "dog" (犬) (inu) and "bay, inlet" (江) (e).