DRAGON in BLEACH:Renji Abarai

Renji Abarai

Renji Abarai (阿散井 恋次, Abarai Renji) begins his Soul Reaper career in the 5th Division, but is transferred into the 11th Division and eventually moves to the 6th to become Byakuya Kuchiki's lieutenant.

Renji has long flowing crimson hair, usually kept in a high ponytail, and his entire upper body is covered in tribal tattoo work. As far as his personality goes, Renji is about as eccentric as any other Soul Reaper. He varies from smug and cocky in his first appearances to downright angsty and depressed after his major defeats, but shows himself to be an incredibly serious and determined fighter when confronted with an actual challenge. Willing to fight, kill, and die for whatever he believes in, Renji is a dangerous man to those who stand in his way. He's also the only Vice Captain who has achieved bankai. Many Bleach fans speculated that he's the most powerful Vice Captain and non-captain position in the Soul Society. He is similar to Ichigo Kurosaki in many aspects, and the two are mistaken for brothers in the anime's Bount arc. Ichigo claims they are cousins to keep things simple, allowing many hilarious situations to occur later, including comments over their unusually colored hair. A continuing gag in the series is Renji's nick name, red pineapple, referring to his crimson hair kept in a pineapple top-like ponytail. During a filler arc before the invasion of Las Noches, Renji wears a shirt with 'Red Pineapple' printed on the front, supposedly bought by Ichigo Kurosaki as a joke. He's even referred as "Aka Pine" during the Shinigami Cup segments.
Abilities

Renji with Zabimaru's spirit, and his shikai.

Renji's zanpakutō is Zabimaru (蛇尾丸, roughly "snake tail"). Zabimaru is a nue (a baboon with a snake tail), hence his name. Zabimaru's spirit is portrayed as battle-loving and proud, similar in personality to Renji. Both the snake and baboon are capable of speaking, though the baboon is usually the more dominant one. They also have a type of human form, where the baboon is a large breasted woman, and the snake is a young kid. Both are connected by a chain from the child's collar to the woman's waist, though their relation is shaky at best.
Zabimaru's shikai command is "Roar" (咆えろ, hoero), or "howl" in other English translations. In such state, it transforms into a segmented blade with a pick-like protrusion on each segment. The segments are connected by a stretchable thread, making Zabimaru more useful as a whip than an actual sword. While Zabimaru can be stretched to incredible lengths in its whip form, Renji has a limit of three consecutive attacks before having to bring the segments of Zabimaru back together for recovery. Renji can also use his spiritual power to separate the segments and surround an opponent with them, allowing him to execute a one-shot omnidirectional attack called higa zekkō (狒牙絶咬, "bite of a baboon's broken fang").

Hihiō Zabimaru.

Zabimaru's bankai is Hihiō Zabimaru (狒狒王蛇尾丸, "baboon king snake tail") and transforms Zabimaru into a massive version of its shikai form resembling a skeletal snake. Unlike its shikai, Zabimaru's segments are held together by Renji's spiritual power, allowing him to separate and reattach them at will. Even if a segment is damaged, Renji can simply detach it and reform Zabimaru. Zabimaru itself, in bankai form, does not literally "cut", Renji usually catches his opponent with the snake-head of his weapon and smashes his opponent into the ground with it. Zabimaru also gains a special technique known as hikōtsu taihō (狒骨大砲, "baboon bone cannon") after Renji becomes more adept with using his bankai. The technique fires a dense blast of spiritual energy from Zabimaru's mouth. He can also use a much more powerful higa zekkō, where all the segments detach and sharpen using spiritual energy.