Ryūsei Kenzaki

, commonly referred to as, introduced during an anime exclusive arc, is a servant of Rurichiyo Kasumiōji, the princess of the Kasumiōji noble family.

Appearance
Kenryū wears the standard Soul Reaper uniform with a light garment underneath. He also wears gray gloves that extend to his elbows. His eyes are gray and his hair is black.

Personality
Because of Enryū's quiet nature, he acts as the spokesperson for Rurichiyo, explaining much of her history in the beginning of the arc. Normally being kind and soft-spoken, he dislikes Ichigo's apparent disrespect for Rurichiyo and can often be seen scolding him for it.

Synopsis
Kenryū first appears with Rurichiyo Kasumiōji and Enryū in the world of the living without any gigai. When Rurichiyo wanders off, the two are forced to remove her from the scene, as hoards of hollows were approaching. They stand on the sidelines and he is seemingly impressed when Ichigo Kurosaki uses his Bankai to disperse the creatures. Later, they appear to be living next to Ichigo and attending his school. Due to their overprotective nature, Ichigo is weary of Kenryū.

After Ichigo's battle with Hanza Nukui, Kenryū explains that he and Enryu were assigned to protect Rurichiyo from a member of her clan, Gyōkaku Kumoi, who plans to kill her in order to gain power. She later enters her family compound and is protected by Kenpachi Zaraki. However, she still decided to marry Shū Kannogi in order to keep Kumoi in line.

Rurichiyo's clan is revealed to be the creators of the Bakkōtō, a device that steals the users spiritual energy in order to make it stronger. As a result, the new 3rd Division captain, Shūsuke Amagai, joins Ichigo and cuts down the assassin forces. Amagai succeeds in killing Kumoi, but takes Rurichiyo with him to Shigekuni Yamamoto-Genryūsai, who he intends to fight. However, Ichigo intervenes and uses his hollow powers to save Rurichiyo and defeat Amagai.

Kenryū, along with Enryū, follows her back to her clan, where they will serve as her body guards once more.

Zanpakutō



 * Shikai: It is released with the command . 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.


 * Shikai Special Ability: 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.


 * Benishidare's secondary ability. He can then use the scattered flowers to rain large energy needles down on his foe.


 * Bankai: Not Yet Achieved