Sajin Komamura

is the Captain of the 7th Division of the Gotei 13,also being the biggest captain.He has the appearance of an antropomorphic canine, making him easily the Captain with the strongest build-up, except for maybe Kenpachi Zaraki. For a long time he was self-conscious about his appearance, and used to hide his face behind a helmet. After the revelation of the three traitorous Captains, of which Kaname Tōsen was his close friend, he does not wear a helmet anymore. His Lieutenant is Tetsuzaemon Iba.

Appearance
Komamura is an unusual character in that he is an anthropomorphic canine. He was initially very self-conscious about his appearance, but after his fight with Kenpachi Zaraki (during which his helmet was destroyed) in midst of the invasion of Soul Society, he gained enough confidence to go without the helmet.Also he appearently uses a dog body for his gigai rather than a human body

Synopsis
He is first seen silenced in the captain meeting of Gins failure to kill Ichigo and his friends.He later appears with Tosen to give respect to the deseasced Aizen with Retsu Unohana.He then fights Kenpachi Zaraki with Kaname Tōsen, while their subordinates fight Ikkaku Madarame and Yumichika Ayasegawa. They couldn't defeat Kenpachi even when fighting together, and after Kenpachi defeats Tōsen's bankai, Komamura fights him with his own bankai. It was only when Komamura sensed Yamamoto was in danger that he left the battle. Komamura has a close friendship with Tōsen, and was very shocked when the latter chose to side with Sōsuke Aizen, feeling that his friend had abandoned his morals. Komamura confronts Aizen but is quickly defeated. Komamura later decides to awaken Tōsen with his own hands.He is barely seen in the later arcs.

History
Little is known about Komamuras history,only that he befriended Tosen before both became captains of the gotei 13,they were close until Kanames defection.It is unknown where Sajin originated though Shigekuni gave him the opportunity to join the gotei 13 even if hes not human,evidence has that he was human before and probably used gigai. Aizen nicely welcomed him to the academy.

Personality
Komamura is serious but loyal to the head captain,as he says that Shigekuni was a benefactor who saved his life.He is not tough or cruel with his squad,he is like Ukitake and Unohana.He even told his lieutenant not to be sorry when he was off duty.He would do anything to defend is honor,he would also obey any order by the head captain.

Zanpakutō
Tenken (Heaven's Sword)


 * Shikai: Its shikai command is "roar".


 * Shikai Special Ability: In its shikai, Tenken creates various body parts of a fearsome armored giant to copy whatever body part Komamura moves; for example, should Komamura swing his sword, a gigantic disembodied arm wielding a sword appears and does the same thing. The body gigantic parts generated by the Initial Release possess strenght and attacking power proportionate to their size, making Komamura's zanpakutō quite powerful.


 * Bankai: Kokujō Tengen Myō'ō (Heavenly Punishment of Kokujō's King)


 * Bankai Special Ability: brings forth the entire giant. Like in the shikai, the giant copies every movement made by Komamura, allowing him to deal colossal damage. There are times when after materializing his Bankai, Komamura has the option of being the giant itself, as seen in his battle with Aizen.