"Wouldn't you say that the kishin's revival was mainly the result of your blundering? [D-Dont' Dont say that stuff to Lord Death!] I don't know. I tend to speak my thoughts in a straightforward way."
Azusa Yumi (弓梓, Yumi Azusa) is the Death Scythe primarily in charge of DWMA's East Asia division and, as of the revival of Kishin Asura, is also in charge of the DWMA's Oceana division in Death Scythe Marie Mjolnir's place. Azusa is known by her nickname "Queen of Committee Chairman" by former DWMA classmates, who had defined her as annoying and bossy during their attendance at the Academy.
Back when Azusa and the other Death Scythes were students, Azusa was the student council president. She often scolded Spirit and Stein, Spirit for his endless flirting and Stein for his urge to dissect everything. She was said to have been a small, yet talkative child.
Azusa appears to be both bookish and analytical in her mannerisms but always very respectful towards everyone. She still treats the others that attended Shibusen with her as little kids like a teacher would (clapping to get their attention and telling them to line up and walk in a single file line), much to the embarrassment of the others. Spirit describes her as always being a "bossy little brat", much to Stein's agreement.
On rare occasions she often shows a warmer side to her, from trying to prevent Marie from making a stupid decision to trying to console Kid on his faith towards the Witches.
Physically, Azusa appears to be of Asian descent. She is of average height, slightly shorter than Justin Law while wearing her usual high-heeled boots, and has small, dark blue eyes. She also wears her neatly combed black hair in a unique hairstyle that starts short in the back and slopes into longer strands towards the front.
Azusa wears rather formal attire, featuring a black jumper that is worn over a long collared, long-sleeve shirt. This shirt is a plain white color with some kind of Asian style patterns on it that are mostly visible on the shirt's collar and untucked ends. Azusa finally wears a pair of black, wide-sleeve pants and brick red high heel boots. She also wears a pair of simple framed glasses.
To her peers, such as Dr. Stein and Spirit, she was said to be bratty. She was one of the people to chastise Stein for his tendencies to dissect people. However, Liz once said to many gun demon weapons, she's seen as an idol due to her status as a Death Scythe and being a Gun Bow.
They seem to be good friends, with a very typical serious-clueless relationship between the pair, often resulting in Azusa having to keep Marie in check, especially when it comes to the topics of love and relationships. Their relationship seems to mirror that of Spirit Albarn and Franken Stein's, with Azusa referring to her as "senpai".
Both Azusa and Stein were classmates. Like Spirit, they shares the opinion of her being a tattletale and somewhat bothersome and irritating due to the fact she has prevented him in some of his dissections as children. Despite this however, he still views her as a valued ally and in return, she returns that view.
Spirit and Azusa were both classmates during their time in school. Like that of Stein's, they share the opinion of her being a tattletale and bossy. She's also somewhat irritated with Spirit due to his flirtatious nature. Both also tend to argue when having conflicted feelings, such as how to address a problem in the battlefield. In addition, she wastes no time in chastising him for his failure of being present when the Kishin was revived. Though they don't often see eye to eye, both display a certain level of respect of each other as former classmates, Death Scythes, and allies.
She occasionally acts as Sid's partner during assignments along with Mira Naigus, where she consistently proves to be a valuable asset, in providing both tactical and long range support. Both individuals have great respect for the other as allies.
Being her boss's son, Azusa seems to generally respect Kid, though it is shown that Azusa also genuinely cares for him in episode 49 where she tries to stop him from going inside the barrier created by the Kishin. Similarly, in the manga, she shows concern when Kid asks the Witches for help against the Kishin and questions If they can be trusted, showing concern for Kid's safety. When Kid assured her things will be fine, she compared his stubbornness to that of his father.
Azusa feels the need to maintain a air of professionalism around Death, who is her boss and, in the anime, her occasional meister. She's one of the Death Scythes who tends to take her duties with upmost seriousness and does whatever she could to make herself useful to him. However, in the anime, even she cannot take someone of Death's eccentric antics and isn't afraid to speak her mind and even scold him. In return, this seems to actually scare him.
Powers & AbilitiesAzusa is suggested to have a genius level I.Q., being an extremely competent information gatherer and tactician too, easily able to locate one of Arachnophobia's labs. In addition to being extremely intelligent, she has an acute memory and amazing speeds that enable her to create maps and diagrams quickly. She also has a clairvoyant ability, referred to as Senrigan, that allows her to see far ahead of whoever she is currently synchronized with. This technique is unique to her, and she can use it to calculate precise distances. While Azusa can use this ability over long distances, the more distance there is between her and the person she is synchronized with, the less she can see. Azusa can also detect souls as well, even while conducting synchronization, and by seeing their soul know both the age and strength of the owner. Azusa is also the only person able to use Soul Resonance at a very long distance through a radio or a telephone.
In her crossbow-like weapon form Azusa is able to compress a soul's wavelength and then fire these high pressure spirit shots with extremely high accuracy. She herself has stated that she can hit a target up to 10 km away with only a 1 mm margin of error. In addition, as a Death Scythe, she's able to resonate easily with Death.
After the Kishin was revived, Azusa and the other death scythes were called back to Shibusen. Before meeting with Shinigami, Azusa accidentally gives Marie the idea of marrying a toilet but successfully talks her out of it using clever word play.
During the subsequent meeting, Azusa is tasked with using her grand vision to search for the recently escaped Asura and to take over the responsibilities of the Oceania branch from Marie.
As part of Joe Buttataki's role in locating a suspected traitor within Shibusen, after the mysterious circumstances that led to the previous operations failure, Azusa is interviewed by him regarding this issue. During this process, Azusa provides highly accurate information pertaining to her mission in searching for Asura and Justin Law's involvement. The questioning progress goes well and relatively quickly; that is until she mentions Marie and the support she is currently providing for Stein, which immediately results in Joe losing his composure, bringing a sudden end to the interview.
Tying Things Up, and New Beginnings
By this point Azusa had now returned to Shibusen's East Asian Branch, revealing that in her absence she had been investigating the whereabouts of Justin Law, as well as some suspicious details of his background brought to light by Joe Buttataki's previous report. During the course of these investigations, she determined that Justin did not have an alibi for the time of Joe's death.
The Witch's Research
She is seen supervising Spartoi's first mission, providing assistance with her Senringan, using it to accurately transcribe everything Kirikou observed within Medusa's concealed and abandoned laboratory in Central Africa. Since all the documents she copied where written in Witch Text, she subsequently linked her vision to Kim's, which thanks to her witch's heritage is capable of reading such writing. Kim proceeds to inform Azusa that the research notes discuss the development of magic that is able to manipulate Madness.
Not much later she hears one of the group saying, "Kirikou they're penetrating the wall change position", through the artifact "Incom". Kirikou manages to reveal that they are now under assault from the town's villagers but another attack prevents any further communication. After continued barrage makes escape impossible, Azusa manipulates her Senringan to locate a destination where both Kirikou and Kim can meet up, without being shot at by the crazed locals. Once they have met up, thanks to Azusa's direction, they are able to land outside of town and Kim reports that they got away safely, before saying that they will see each other later.
Battle on the Moon
Asura accompanies the Death Scythes and other DWMA staff onto the new Demon Airship to The Moon in order to fight the Kishin. Upon returning to the Earth, Azusa is used by Kilik Rung to fire upon the Kishin.
- Azusa's first name, Azusa (梓), is the Japanese word for a plant that is used to make bows. Her last name, Yumi (弓), instead means bow (as in 'bow and arrow'). As such, her name is a play on the Azusayumi ("birchwood bow"), referring to ancient Japanese bows made from Japanese cherry birch. The term has since become a stock phrase in poetry referring to images of pulling and twanging. 
- In a signing, Ohkubo revealed the age of Azusa, which is 25.
- Her weapon form resembles a Gunbow, a combination of a ballista (also known as crossbow) and a musket.
- Her special power, the Senrigan, may refer to the long-range capabilities of her weapon form, seeing how she can use it to see from a far distance.
- Liz has said that Azusa is an idol for gun types like her and her sister.