Miss Ayumi is a teacher at Graviton High School who has A-ko, B-ko, and C-ko in her class at the same time. This means that she has the task of trying to get C-ko to learn while preventing A-ko and B-ko from murdering each other.  Later, we learn that Miss Ayumi nurses a secret gloominess in her soul. Her parents are both dead, and she worries that she will never fall in love. This leads to her fateful decision to accept an arranged marriage with Kei.  Miss Ayumi is also a member of the Volunteer Defense Force, a loose-knit organization of do-gooders who defend the city when the authorities fail. When A-ko and B-ko's brawl sparks a citywide alert in "Cinderella Rhapsody," she immediately dons an outlandish superhero costume and rides a gravity-defying cycle into action. Her skimpy outfit was a holdover from the time when Project A-ko was going to be an adult series.  Miss Ayumi is modeled after the lead character of the eponymous TV series Creamy Mami, one of several magical girl TV shows that came out during the 80s.  Miss Ayumi's subject appears to be literature. She loves fireworks displays and is an avid swimmer.  (Source: Wikipedia)

On a splendid morning, an effervescently cheerful teenaged schoolgirl named A-ko sets off for school with her delightfully ditzy friend, C-ko. The duo are students in a marvelous futuristic city, but A-ko is about to run afoul of the wealthy and powerful B-ko, a young lady used to getting everything she wants—and what she wants is C-ko! Also, a vast and powerful alien fleet is about to touch down in Graviton City, and they're after something, too. Fortunately for us, A-ko’s no ordinary schoolgirl—she’s got super powers of her own! 
 
(Source: Discotek)

Asami Mukaidono is a female voice actor who works under Office Osawa.

[Profile (Office Osawa)](https://osawa-inc.co.jp/women/mukaidonoasami/)

__Height:__ 165 cm
Birthname: Jane Elizabeth Ross

Married to [Garrick Hagon](https://anilist.co/staff/146800)

Three weeks after the incident that left Captain Napolipolita's ship balancing on top of Graviton City, A-Ko and the gang go on summer vacation. While A-Ko ponders losing some weight and B-Ko devises another plan to defeat her redheaded rival to win C-Ko, Napolipolita and Spy-D experience severe homesickness - begging for a way to return to their home planet. Meanwhile, Hikari Daitokuji - B-Ko's father and the CEO of the Daitokuji Financial Group - arms the local military with new mecha to attack Napolipolita's ship and obtain its advanced technology.
 
(Source: Anime News Network)

Lynda Boyd is a Canadian actress. She is perhaps best known for her roles in the Hollywood films Final Destination 2 (2003) and She's the Man (2006) along with her on-screen son, James Kirk. She had minor roles in I Spy (2002), About A Girl (2007/08), The Fast and the Furious: Tokyo Drift (2006), and Intern Academy (2004).

In the middle of another break from school, A-Ko dreams of finding the perfect boyfriend. Because of this, she and C-Ko get into an argument that leads to C-Ko running away and nearly getting hit by a motorcyclist named Kei. While working part-time at a fast-food restaurant to raise money for a party dress, A-Ko meets Kei and immediately falls in love with him. B-Ko happens to like him as well; however, both A-Ko and B-Ko are unaware that C-Ko is the apple of Kei's eyes.
 
(Source: Anime News Network)

In Iraq, a group of archaeologists discover ancient relics that prophecize the coming of a superior race and the end of all civilization. Meanwhile, back in Graviton City, as A-Ko and B-Ko's rivalry over Kei intensifies, Mr. Daitokuji sets up an arranged marriage between Miss Ayumi and Kei. Furious over the engagement, both A-Ko and B-Ko do whatever it takes to prevent the wedding from going through. Little do they know that another alien fleet is on its way towards Earth.
 
(Source: Anime News Network)

Ayumi Azuchi