''Azumi'' (2003) is an extremely violent action movie by Ryuhei Kitamura, based on [[Manga/{{Azumi}} a manga series]] created by Yū Koyama, focusing on the life of Azumi, a young woman brought up as part of a team of assassins charged with killing three warlords that threaten Feudal Japan with an agenda of war and bloodshed. It begins an indeterminate number of years after the Battle of Sekigahara, but as the story progresses and Azumi begins her missions, the manga introduces the characters into mainstream history. Many of the early assassination missions that Azumi undertakes are the assassinations of the prominent supporters and generals of the Toyotomi Clan, against whom the Tokugawa Clan expected to again go to war. The manga 'reveals' that many of the Toyotomi leaders who conveniently died of diseases or accidents prior to the final confrontation between the Toyotomi and Tokugawa were actually victims of assassinations by Azumi and her comrades.

In 2005, a sequel was made, ''Azumi 2: Death or Love'', featuring Creator/ChiakiKuriyama of ''Film/KillBill'' fame and written by cult anime director Creator/YoshiakiKawajiri.
!! The movies contain examples of:

* ActionGirl: Azumi herself. In the manga, she is barely pubescent, making her a LittleMissBadass. They used a slightly older cast for the movies, though.
* BadassCape
* BloodKnight: Bijoumaru... by all the Gods, Bijoumaru.
* ConservationOfNinjitsu: Technically they're ''[[Manga/RurouniKenshin hitokiri]]'', but the trope applies.
* CurbStompBattle:
** Most of the fights in the first movie, at least in Azumi's case. All [[spoiler: but one]] of her TrueCompanions eventually fall to [[SortingAlgorithmOfEvil the waves of enemies sent against them]], but Azumi always survives without even a scratch. By the end of the movie, her personal kill count is in the hundreds, albeit aided by a bit of UnfriendlyFire.
** Subverted in the second movie. Azumi defeats all of the elite ninja, but is poisoned in one of the later fights, and would have died without Ginkaku's assistance.
* DeadlyGraduation: The ten young assassin students were told to pair up with the person they liked the most before their final exam. Then they were told to fight each other to the death.
* {{Determinator}}: Aya Ueto did many of her own stunts, during the filming of one fight on the first day she was struck on the forehead with a prop sword. The Director was worried that the injury might cause her to pull out of the production. She returned to the set the very next day ready to continue filming.
* EvenEvilHasStandards: Saru delivers a MercyKill to [[spoiler:Hyuga]] even though Bijomaru deliberately injured him in such a way that his death would be slow and painful.
* NoSocialSkills: growing up in isolation (and learning the fine art of bloody murder, lest we forget) deprives all of the ten of these.
* OrphanageOfFear: Subverted - the ten are all war orphans, but being trained as killers turns it into an Orphanage Of Doombringers, until... see DeadlyGraduation above.
* SheCleansUpNicely
* SingleStrokeBattle: Azumi vs. Bijomaru at the climax of the first movie, sort of. They spend some time running and jumping around, trading ineffectual attacks, then they pause in the plaza, Bijomaru gives Azumi his WorthyOpponent line, and this is how the duel ends.
* SomethingAboutARose: One character, a long-haired, white-clad, psychotic biseinen, first appears holding a red rose, for no other apparent reason than to look cool.
** The bonus DVD content confirms that this was in fact the only reason for the rose.
* SortingAlgorithmOfEvil: After Azumi and her comrades easily dispose of a bunch of nameless Mooks, the EvilOverlord decides to set an ambush with his better-trained ninja - who are promptly slaughtered. At this point he enlists a band of bloodthirsty mercenaries. When this still doesn't work, he goes into a prison to release a psychotic mass murderer (who happens to be a master swordsman) and gives him the rest of his troops, plus an ''entire town'' of cutthroats as backup.
* TheLawOfDiminishingDefensiveEffort: Bijomaru uses a sword with no handguard, to show he's such a skilled fighter that he never needs to parry. Differs from most examples of this trope in that he dodges the attacks instead of just [[NoSell No Selling]] them.
* WhatCouldPossiblyGoWrong: at the end of the first movie, the one remaining warlord is enjoying a leisurely cruise to his next destination, his ship practically in the middle of the ocean as he invites his bodyguard to join him at the ''onsen''. [[CrazyAwesome Cue Azumi leaping out of the ocean to finish him off.]]