Ryūsei Kenzaki

Kenzaki Ryūsei, commonly referred to as Kenryū (犬龍), introduced during an anime exclusive arc, is a servant of Rurichiyo Kasumiōji, the princess of the Kasumiōji noble family.

Character outline
Kenryū is fiercely loyal to Rurichiyo, and often reprimands Ichigo for not showing her proper respect. He has somewhat similar facial features to the arrancar Tesla but with short dark hair, and wears a normal Shinigami uniform and a light garment underneath, as well as long gloves.

Zanpakutō
His zanpakuto is named Benishidare (literally "crimson weeping bough") is released with the command "bloom madly". When released, it takes the form of a long black sword with five flowers attached to it; two flowers on either side and one on the tip. The flowers release a pollen which causes more flowers to bloom on his opponent's weapon, rendering it useless. The flowers will wither if the pollen is blown away. Kenryū can also scatter the flowers on the blade to blind an enemy to allow in the aid of Rurichiyo's escape in battle.