Katashi Takeuchi

Katashi Takeuchi (堅竹内, Takeuchi Katashi) is a who has been captured and bonded to the soul of Zentaro Umemoto by Rikichi Umemoto several centuries ago. He was the former Captain, or Kenpachi of the, where he was known as the Sixth Kenpachi (第六剣八 Dairoku Kenpachi). During his time as Kenpachi, he gained a nickname: The Preceding Shadow (先行影 Senkō Kage), due to his love of being the last shadow that his victims see before he kills them.

Zanpakutō
Tokiwa (常盤, Eternal Constant): Katashi's sword is named Tokiwa and is sealed in the form of a long, nodachi with black hilt wrapping witha repetitive pattern of green diamonds running up the hilt, similarly to his shihakushō. The tsuba is a simple oblong shape with a groove like border around it's edge. It is kept in a very long black sheath on his left side.

Shikai: Tokiwa's shikai command is Impale Them (突き刺す, Tsukisasu). Upon release, Tokiwa becomes a large, lance-like weapon with a pentagram mark on it, and an ornate tip, with a sort of fan like object protruding from it's spearhead. This form has been accessed by Zentaro through the Ibutsu Shojin technique. Bankai: Not Yet Revealed.
 * Shikai Special Ability: Tokiwa is a Poison-Type Zanpakutō with the ability to inject a paralysis-inducing toxin into the opponent's body through contact with the tip of the lance. Katashi prefers to not use such "underhanded tricks" in a fight, unless he really has to, so instead of using his Shikai like a lance, he prefers using it like a sword.

Trivia

 * Katashi's full name means "Firm Bamboo House" Katashi (堅, Firm) Takeuchi (竹内, Bamboo House).