Fifth Division

The Fifth Division (五番隊, gobantai), also known as Squad 5 in the English Dub, is one of the Gotei 13. The 5th division is headed by Captain Shinji Hirako and the Lieutenant Momo Hinamori.

The 5th Division follows the traditional organization of a Gotei 13 Division. After the Defection of Sōsuke Aizen the Division was run by the next highest authority in the 5th Division, Lieutenant Momo Hinamori. Some time after Aizen's defeat, Shinji Hirako once again became Captain of the 5th Division.

Like all the other barracks, the 5th Division Barracks house the offices and living quarters of the Shinigami of the 5th. While a captain, Sōsuke Aizen's room in the barrack was on the second floor. In contrast, Shinji's room, while he was a captain was on the first floor and, notably, contained a turn-table.

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Shinji Hirako

Shinji Hirako (平子 真子, Hirako Shinji) is the captain of the 5th Division in the Gotei 13. He also served as a recruiter and the de facto leader of the Visored.

Shinji has brown eyes and jaw-length blonde hair with a straight cut and many of his facial expressions reveal his upper teeth. He wears a standard Karakura school uniform, though he usually wears a gray long-coat, shirt and tie, a newsboy cap (though he commonly forgoes wearing the coat and cap). Shinji appears to have a pierced round ring in the middle of his tongue. During his first stint as a captain, before he left the Soul Society, his hair was very long, reaching down to the lower part of his back. He wore the standard Shinigami robes with a standard, long-sleeved, captain's haori. Seventeen months after Aizen's defeat, Shinji returns to this attire with the addition of wearing his tie tucked under his robes. His hair which he kept it a short, straight-line cut after becoming a Visored has remained basically the same as well, with the exception of the bang now having a more asymmetrical cut with the left side being longer than the right.

Shinji is somewhat comical, adding a bit of levity to situations that are otherwise serious. He has a flippant attitude under normal circumstances and seems to like annoying his associate, Hiyori Sarugaki, which usually earns him a slap from one of her sandals. She, in turn, shows him absolutely no respect and frequently insults and attacks him; although he is no better, frequently making faces or quick insults at her expense. He also appears to have a history of referring to cute girls he meets as his 'first love', complete with a deadpan look on his face despite the obvious lie (he apparently never did this with Hiyori, further annoying her). He also apparently enjoys listening to jazz music, as he had a phonograph that played his vinyl records in his days as a Captain.
Underneath this, though, he is quite perceptive in terms of regarding other people, and during his time as a captain, was one of the few people who appeared suspicious of his then-lieutenant Aizen, and could apparently sense or see through some of his illusions. He also quickly notes parts of Urahara's personality. Aizen even admitted to being somewhat intimidated by him. Whenever angered or in combat, Shinji is fairly calm, serious, and level-headed. During a conversation with Ukitake, it was implied that he had been a long-running captain. However, he is not included in Shunsui Kyōraku's list of captains from 100 years before (now 200 years before, because that was said during the Pendulum arc).


Hollow Mask: Shinji's Hollow mask strongly resembles a pharaoh's mask, with a short, flowing hood hanging down the back of his neck. When donning his Hollow mask, Shinji's sclera turn completely black and his irises become grey.[81]
Power Augmentation: While wearing the mask, Shinji's Hollow powers supplement his Shinigami powers, giving him a vast increase in both strength and speed.




Shinji's Cero
Cero: Shinji gathers energy that is displayed in a horizontal line at his fist. He then releases a crimson Cero with an extremely wide arc and devastating force. The power of the Cero from a distance is powerful enough to cause grievous injury to an Espada of at least rank six, even at minimal power.
Enhanced Strength: While wearing his Hollow mask, Shinji has shown that he has greater strength, which he uses to overwhelm Tōsen and Grimmjow.
Enhanced Speed: While wearing his Hollow mask, Shinji has shown that he can move much more quickly, which he uses to overwhelm Tōsen and Grimmjow.



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Momo Hinamori

Momo Hinamori (雛森 桃, Hinamori Momo) is the lieutenant of the 5th Division, formerly under captain Sōsuke Aizen, currently under captain Shinji Hirako.

Hinamori has brown eyes, and wears standard Shinigami robes with her black hair pulled into a bun held in a tied cloth. When in her Shinigami robes, she wears the 5th Division's lieutenant armband. She can be seen in her pajamas, a plain kimono, in the latter case her hair is tied in a loose ponytail. When she attended the Shinigami Academy, she wore the red students robes assigned to the girls and her hair was in pigtails tied at the base of her neck.

Hinamori is an upbeat and easy-going girl who is generally quite trusting, but also very impulsive, emotionally vulnerable, and naïve (though she has said that she would like to grow out of her naivety). Quite friendly, Momo is on good terms with many of the Shinigami captains and lieutenants, particularly Tōshirō Hitsugaya (childhood friend), Rangiku Matsumoto (somewhat of an older sister figure), and Izuru Kira and Renji Abarai (academy classmates). Though normally kind, her rare bouts of anger can appear rather menacing, such as her outrage at Gin Ichimaru, who was a Captain at the time, when she blamed him for causing Aizen's death.

Hinamori's main pastime activities are reading and drawing. Due to her talent in drawing, she has overseen work for book illustration in the Shinō Academy. Her love for books was developed since Aizen regularly gave her the books he had read. In his absence, she frequently visits the library.
She also attends the ikebana lessons held by the 4th Division Captain, Retsu Unohana. She frequently pays visit to her and Tōshirō's grandmother in Rukongai. Her favorite food is peach (a reference to her given name), while she does not like plums, even though her Zanpakutō's name means "flying plum tree". She sometimes bakes cookies, and once made a batch in the shape of Aizen's glasses.
Since Momo was the utterly devoted lieutenant of Aizen, even believing him to be innocent and that Ichimaru had manipulated him, Aizen's betrayal to the Soul Society essentially broke her mental state, and his attempt on her life has had thus far unknown effects on her psyche. After Yamamoto debriefed Hitsugaya on Aizen’s plan concerning the King's Key, he allowed her to talk to her old childhood friend, though Momo appeared rather fatigued since regaining consciousness. After she apologizes to him profusely for not believing him and attacking him, Tōshirō pokes fun at her for her baggy eyes and small breasts, trying to make her laugh. Hinamori abruptly asks him if he is planning on killing Aizen, and when he tells her yes, she begs for Aizen’s life. As she enters a hysterical state, she is knocked out again, and Yamamoto apologizes for Momo. At this time, it is obvious that Momo is not in a stable mental condition. Hinamori’s mental state is not entirely unexpected, given her idolization of Aizen.

In the Fake Karakura Town arc, Momo appears to help defend Karakura Town against Aizen, Ichimaru, Tōsen, and the top three Espada, declaring herself as Aizen's enemy. However, as Rangiku notes, she still referred to him as "Captain Aizen," making it questionable if she's fully accepted the fact that Aizen is the enemy, or if she still has some doubts.


 Shikai:
The command for its Shikai is "Snap" (弾け, hajike). When its Shikai is activated, Tobiume's blade straightens and produces two jutte-like prongs (three in the anime) along its length at various intervals.
Shikai Special Ability:
In this form, Tobiume releases exploding fire balls from its blade. The release of a fireball is accompanied by a sound, similiar to a seagull cry.


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Sosuke Aizen

Sōsuke Aizen (藍染 惣右介, Aizen Sōsuke) is the former captain of the 5th Division in the Gotei 13; he later leaves Soul Society with his followers, Gin Ichimaru and Kaname Tōsen. His lieutenant was Momo Hinamori. He was the main antagonist from the start of the series to the conclusion of the Fake Karakura Town arc.

In Hueco Mundo, Aizen is first seen wearing Arrancar clothes over his Shihakusho. Afterwards, but before his transformation, Aizen wore full clothing similar in style to the Arrancar.
Prior to his departure from Soul Society, he appeared as a mild-featured man with brown scholarly hair enhanced by square glasses. He wore the standard Shinigami uniform with a captain's haori. However, during his ascent to Hueco Mundo, he removed his glasses and swept a hand through his hair, revealing menacing eyes and a very different hairstyle (swept back hair, with a strand hanging in his face). As he had previously revealed to Renji Abarai, the Aizen they all knew never existed and this would seem to be a visual representation of that claim.
Aizen's appearance changes again upon his initial defeat by Ichigo Kurosaki. Aizen loses all of the physical changes made by his transformation and returns to the physical form he had prior to transforming. The only visible signs of his change that is left is in his left eye which has a purple sclera and white iris and pupil.

Despite his current villainous status and former position of authority, Aizen is a surprisingly polite, soft-spoken intellectual, often addressing his subordinates by their given names. He rarely shows any sign of alarm or distress and often has entire situations planned out well in advance. Whenever confronted, Aizen is casual and uncaring, attempting to draw out a conversation and make small talk, which often infuriates the one he is talking to.

Aizen initially appeared to be a very kind, well-respected captain and was looked up to by many, especially his Lieutenant Momo Hinamori. However, this was just a mask to disguise his manipulative and very dangerous nature. In truth, he cares very little for his underlings (both past and present), and is willing to use almost everyone around him as pawns in his twisted game of chess. In his own words, Aizen claims to be unaffected by any form of morals or ethics as he views them as mere restrictions on his potential. He is, therefore, willing to stop at nothing to further his selfish ambitions, including manipulating or killing anyone if he deems it to be necessary. He is fond of long, complicated, and somewhat convoluted plots, and frequently appears to toy with his underlings for amusement. Unlike most of the other Shinigami who appear to have some kind of honor and kindness, including some Espada, Aizen lacks genuine compassion and honor.
During his time as a captain, he was known to like tofu, but he disliked boiled eggs. In his free time, he often read and he also gave a special lecture of calligraphy at the Shinigami Academy, given that he excelled in this branch of arts. This optional course was immensely popular among the Shinigami students, and many of them felt great sorrow at Aizen's sudden departure.
As the commander of his army of Arrancar, Aizen controls his new minions either through acquired respect or fear. Ulquiorra Cifer, one of his noticeably loyal subordinates, revealed in a conversation with Orihime Inoue that they are all here to further Aizen's ambitions. For more rowdy individuals like Grimmjow Jaegerjaquez, he keeps them in line through intimidation and mind games. The Arrancar Aisslinger Wernarr also claims that they follow Aizen because he has no fear, something which beings born from fear and despair find inspiring. Other Arrancar occasionally follow Aizen for reasons unique to themselves, such as Szayel Aporro Granz, who follows Aizen with the hopes that he will eradicate the world of all non-Hollows.

To date, the equally manipulative Gin Ichimaru is the only person who seems to be able to see through Aizen's manipulation. Ichimaru has also shown that he has some sense of Aizen's emotions and feelings, correctly identifying that Aizen was enjoying the invasion of Ichigo and his friends and their successes within Las Noches, as well as picking-up on the fact that Aizen had registered the arrival of Hinamori in battle of Fake Karakura Town and was surprised by it. By contrast, Kaname Tōsen has shown no such understanding and has fallen victim to one of Aizen's more minor mind games when Aizen off-handedly manipulated him into punishing Grimmjow for him while Aizen himself kept up his appearance of benevolence.
Aizen's true objective is to overthrow the king of the Soul Society. As he and his fellow traitor captains were departing from the Soul Society, he told Jūshirō Ukitake that "no one has stood on the top of the world", not even the gods, but he aspires to "stand in the heavens and end the unbearable vacancy on the world's throne". To do this, he needs the Ōken (王鍵, Royal Key), a tri-pronged golden key that opens a portal to the dimension in which the Spirit King resides. While the location of the key is known only to Captain-Commander Yamamoto, Aizen knows how the original was created and how to manufacture another. To do this, 100,000 souls need to be gathered together (which will kill all the entities used) and vaporize a significant portion of the area used in its forging. His sights are therefore set on Karakura Town, which has an unusually large concentration of spirit particles.
According to Kisuke Urahara, since mastering the Hōgyoku, Aizen has become less cautious in battle; noting that before he subdued the device Aizen would not have allowed him to use level 90 Kidō; Aizen admits that his new powers allow him to let his guard down.  Also due to this newfound power, he has developed more of a seemingly arrogant and overconfident attitude, often not even thinking his attacks or defense through anymore like he used to, or even bothering to find out the effects of his opponents' and his own attacks. In his newest form, he has also developed a severe superiority complex, believing he is now above both Shinigami and Hollows. Because of his superior attitude and high intelligence, Aizen is easily enraged when facing something or someone that he doesn't understand; for example, when witnessing Ichigo in his "Final" form, Aizen becomes furious because he is unable to comprehend how a human has surpassed him.


 Info from :  http://bleach.wikia.com/