Ayumu Kasuga

Ayumu Kasuga (春日歩), more commonly known as Osaka (大阪), is a character from the anime and manga series Azumanga Daioh.

She was voted 7th in the top 100 poll, "Anime Heroines of 2002" by readers of the Japanese anime magazine Newtype in 2003.

Biography
Ayumu Kasuga is a transfer student from Osaka. Tomo Takino, expecting her to act like the stereotypical Osakan—loud, exuberant and fond of bawdy jokes—chose for her the nickname "Osaka", although Ayumu's behavior could not be more different. Ayumu considers herself "slow" and "spacey" - but she lacks the energy or motivation to dispute it. The nickname sticks so well she is called 'Osaka' by teachers and even in the class roster, to the point that no one even remembers her real name (Yomi has a similar problem). In the manga, Osaka mentions that she lived in Kobe when she was in elementary school and was born in Wakayama. Tomo, who says she doesn't know where Wakayama is, tells Ayumu to "just be Osaka".

Despite her non sequiturs and a tendency to nod off during lectures which upset her teacher, Yukari Tanizaki, she remains in Yukari's homeroom class for all three years. Because of her poor performance on exams, she is a member of the "Bonkurazu" (translated as "Knuckleheads" or "Bonkers" in the anime and "Numbnuts" in the manga). Her decision, on Chiyo's advice, to seek a teaching career after graduation is viewed by Yukari as a deep personal insult.

Osaka often acts like a "space cadet": slow, inattentive, and stuck in her own world. Although she seems slow and easily distracted, she merely has a mind that works quite differently from that of most people. This makes her prone to daydreaming, absentmindedness, and non-sequiturs, but it also makes her unusually good at answering certain types of riddles. But while some people assume that she lacks focus, the truth is that in quite a few cases, Osaka is really a little too focused. When she daydreams in class she tends to dream about Chiyo and her pigtails. When she gets a thought in her head, she focuses on it so intently that the rest of the world simply disappears, causing her to often miss what's going on around her (in episode 2, Osaka was focused on eye floaters when a cockroach invades the class and Tomo enthusiastically tries to exterminate the bug, literally sending desks flying). During a vacation, she tried to wake Miss Yukari by banging a frying pan, but, in her drowsiness, took a knife from the kitchen instead. She is especially close to Chiyo, since even though Chiyo gets much better grades, both are bad at P.E. (Osaka is unusually stiff, even when stretching out, shown on multiple occasions to not be able to reach her toes even with Chiyo pushing her), and both seem to approach the world with the same sense of childlike wonder and curiosity, though Chiyo's is usually tempered by common sense and information, while Osaka's is not. In fact, Chiyo provides this for her, habitually reaching to grab Osaka's shirt sleeve when Osaka begins to muse about doing potentially dangerous things, and presumably might follow through if not restrained and "brought back to earth."

In contrast to most of her peers, Osaka always keeps a quiet, accessible mood. It's extremely rare to catch her in a fit of anger or losing control (as seen in the January chapters of Vol. 4 of the manga or Episode 25 of the anime, when she sports a maniac grin after finally learning how to break a pair of chopsticks evenly, and gets mad at Tomo for not doing it properly).

Osaka has been known to use the phrase "O-ha!" (short for おはよう, ohayou, "good morning"), which was popularized by Shingo Katori of the pop group SMAP, as an example of how "normal" Japanese people talk. As Tomo points out, this is not a correct assumption.

At the same time, Osaka has a habit of being able to point out obvious things nobody else seems to notice (such as the fact that none of her core group of friends has boyfriends, or that Kaorin is possibly homosexual ) and has surprising levels of knowledge on unexpected topics such as marine biology and obscure kanji. She also seems to have a strange obsession with sea slugs. In both the manga and the anime, she was also every bit as interested as the other girls to hear what Nyamo had to say about sex. However, her sense of humor is sometimes unusually morbid. On a trip to Chiyo's summer home, Osaka tells a scary story where all of the girls are murdered one by one, only to reveal that she was the killer. When the other girls couldn't decide between a haunted house, a cafe, and stuffed animals as their theme for the second-year Culture Festival, she suggested a cafe full of cat corpses as a compromise. She is also easily amused by things that most people would consider bizarre. During the Sports Festival, she made a big deal out of running the obstacle course because she thought the event of sticking her face in flour to get a candy (a penny in the manga) was funny and had a giggle fit when she got there, and well afterwards, her face still covered in flour. The manga also revealed that she actually likes to run outside and play in typhoons, yet is easily spooked by thunder.

Osaka's real given name means 'to walk' or 'to go on foot' and her surname means 'spring day.'

Appearance in the English versions
In the English translation of the manga, her Kansai dialect was rendered as a Brooklyn accent, which has sometimes been done for other anime characters with Osaka accents, such as Naru/Molly from Sailor Moon. The English dub of the anime, which was done later, gives her the Southern United States accent from around ADV Films' headquarters in Houston, Texas, "which shares the business-oriented attitude with Osaka, as well as the country image that color both the Southern and Osakan accents."

Voice actors

 * Television series and movie:Yuki Matsuoka
 * Azumanga Web Daioh short:Ayako Kawasumi
 * English dub:Kira Vincent-Davis

Character songs

 * "Shikkari! Try La Lai" Words by Aki Hata, music by Masumi Itō
 * "Time Pavement" Words by Aki Hata, music by Masumi Itō