What Is Project A-Ko About?
The premise of Project A-Ko in 327 words, with nothing given away. The full story follows below.
In a near‑future Earth the scar of a cataclysmic meteor has been sealed by a gleaming new metropolis, a city that rises from its own crater and buzzes with the restless energy of reconstruction. Beneath its shining towers, an ever‑present extraterrestrial whisper looms, hinting that humanity’s future may hinge on something far beyond ordinary politics. The atmosphere blends the sleek optimism of futuristic tech with the gritty determination of a society still learning to trust its own rebirth, setting a stage where everyday life and interstellar stakes coexist in a bright, slightly absurd harmony.
A‑ko Magami steps onto the scene as a red‑haired, sailor‑suit‑clad teenager whose natural speed and strength seem almost superhuman, yet she worries more about catching the school bell than world‑saving heroics. Her perpetual lateness masks a latent confidence, making her both relatable and oddly poised for the challenges the city silently threatens. By her side is C‑ko Kotobuki, a bubbly, carefree optimist whose bright outlook injects levity into the looming peril, turning each morning’s scramble into an adventure of its own.
Rivalry ignites when B‑ko Daitokuji, the affluent and brilliant heir of a powerful family, arrives with a fierce desire to outshine her peers. Her competitive spirit fuels a series of escalating contests that blend cutting‑edge schoolyard technology with a hint of theatrical showmanship, turning the hallways of Graviton High School for Girls into a playful battlefield. The tension between A‑ko’s laid‑back confidence and B‑ko’s polished ambition creates a dynamic trio whose interactions crackle with humor, grudging respect, and the promise of something larger than high‑school drama.
Together, these three students navigate the ordinary trials of adolescence—exams, friendships, and the quest for identity—while the city’s rebuilt skyline watches, ready to test their resolve against a cosmic backdrop. The film balances light‑hearted school life with the relentless pulse of an alien threat, inviting viewers to wonder how youthful energy might just be the key to holding the world together, one sunrise at a time.
What Happens in Project A-Ko?
The complete story of Project A-Ko, from the first scene to the last, in 409 words (about 2 minutes). Spoilers throughout. Names in the text link to 5 cast member pages.
Spoilers ahead
A mysterious alien spaceship crashes into Graviton City, erasing the population and leaving a massive crater that the city rebuilds around over time. Sixteen years later, a new school year begins for two transfer students at the all-girls Graviton High: A-ko Magami, Miki Ito a lively, red-haired, sailor-suited teen, and her best friend C-ko Kotobuki, Michie Tomizawa a bubbly, carefree optimist. Although A-ko seems to possess superhuman speed and strength, she still believes she’s just an ordinary teenager, mostly worried about getting to class on time because she chronically oversleeps her alarm.
The pair quickly draw the attention of B-ko Daitokuji, Emi Shinohara a rich, snobbish, brilliant fellow student who becomes obsessed with C-ko and determined to win her over. B-ko’s schemes begin as a series of increasingly formidable mecha piloted by her teammates, launched at A-ko each morning. After losing each new, more powerful machine, she ultimately unveils the Akagiyama 23, a bikini-clad powered suit, and the battles spread through the school with growing ferocity and little restraint.
Meanwhile, trench-coated spy D (Operative DC138621-S113), Tessyo Genda has been watching A-ko and C-ko every morning, relaying information to a large approaching spacecraft. The aliens conclude they have found a lost princess they have been seeking. They arrive on Earth and unleash an all-out assault against the Graviton military, which struggles to counter the alien technology. The fight between A-ko and B-ko continues to spill across the city even as the military and aliens clash, and in the midst of this chaos, C-ko is abducted by D, revealed to be a member of the Lepton Kingdom of Alpha Cygni—an all-female alien race. C-ko is their princess.
Witnessing the kidnapping, A-ko and B-ko set aside their rivalry and infiltrate the spaceship. Inside, A-ko confronts D and the ship’s alcoholic Captain Napolipolita, Shuichi Ikeda while B-ko rescues C-ko. Yet the truce dissolves when B-ko opens fire on A-ko, D, and the Captain, destroying the ship’s navigation system. The vessel crashes onto the city’s Military Command Tower (the remains of the earlier crash). After the ordeal, both A-ko and C-ko find themselves perched atop an unconscious B-ko.
The next morning, A-ko wakes up sore but cheerful, and she and C-ko walk to school in new uniforms. They pass a disheveled D and the Captain begging for donations to repair their ship. The film closes with B-ko’s sly smile as A-ko appears on the horizon, hinting that their adventures—and their rivalry—are far from over.
Project A-Ko Timeline: Every Key Event in Order
12 key events in the order they happen, from “Graviton City’s Destruction and Rebirth” to “Closing Image: Rivalry Persists”. 12 events name a place, across 7 locations.
- 1
Graviton City’s Destruction and Rebirth
An alien spaceship crashes into Graviton City, wiping out the entire population and leaving a massive crater. The city remains in ruins until it is rebuilt sixteen years later, changing the landscape and the lives of survivors. This event provides the backdrop for A-ko and C-ko's arrival as transfer students.
When:16 years after the crash Where:Graviton City
- 2
A-ko and C-ko Join Graviton High
High school transfer students A-ko Magami and C-ko Kotobuki enroll at Graviton High School. Their extraordinary abilities and confident personalities immediately set them apart from their classmates. The new school year marks the beginning of a series of daily conflicts and adventures.
When:Start of a new school year Where:Graviton High School
- 3
A-ko’s Powers Meet Ordinary Teen Life
A-ko possesses superhuman speed and strength, but she considers herself an average teenager. She worries about getting to school on time due to her habit of oversleeping. These conflicting traits create both comic moments and underlying tensions.
When:Mornings Where:Graviton High School
- 4
B-ko’s Obsession Sparks Daily Mecha Attacks
B-ko develops an obsession with C-ko and aims to win her over. She launches a series of mecha attacks piloted by her followers against A-ko each morning, escalating in power. The battles spill from the school into wider city spaces.
When:First days of school Where:Graviton High School
- 5
D the Spy Reports to the Alien Ship
Trench-coated spy D monitors A-ko and C-ko and reports back to a large spacecraft approaching Earth. The aliens conclude they have found their lost princess and prepare for arrival. Tension builds as the spacefaring threat draws closer.
When:Before invasion Where:Graviton City outskirts
- 6
Alien Arrival and Earth Attack
The alien ship reaches Earth and launches an all-out assault on Graviton military forces. Earth's defenders are overwhelmed by alien technology. A-ko and B-ko continue their rivalry even as the invasion unfolds.
When:During the invasion Where:Graviton City
- 7
A-ko and B-ko Fight Across the City
The battle rages across the big city while soldiers struggle to repel the attackers. A-ko and B-ko's rivalry colors the crisis, influencing how people react to the disaster. The city becomes a war zone as technology from the aliens overwhelms defenses.
When:During the invasion Where:Graviton City
- 8
C-ko Is Abducted by D
C-ko is abducted by D in the midst of the confrontation. D is revealed to be a princess of the Lepton Kingdom of Alpha Cygni. Her capture shifts the mission from rivalry to rescue.
When:During the invasion Where:Graviton City
- 9
Infiltration and Rescue Mission
A-ko and B-ko infiltrate the alien spaceship to confront D and Captain Napolipolita. B-ko rescues C-ko during the operation. The trio begins to rebuild their teamwork under fire.
When:Infiltration phase Where:Alien spaceship
- 10
Navigation System Destroyed and Ship Crashes
B-ko opens fire on A-ko, D, and Captain Napolipolita, destroying the ship's navigation system. The vessel crash-lands atop the Military Command Tower, using the remains of the earlier crash as a perch. A-ko and C-ko emerge from the wreck, while B-ko lies unconscious on the tower.
When:Immediately after the infiltration Where:Military Command Tower, Graviton City
- 11
Morning After: Recovery and Return to School
The next morning, A-ko wakes up sore from the day's adventures and walks to school with C-ko in new uniforms. They pass by a disheveled D and the Captain, who beg for donations to repair their ship. The city resumes normal life beneath a layer of sci-fi spectacle.
When:Next morning Where:Graviton City streets / Graviton High School
- 12
Closing Image: Rivalry Persists
The film ends with B-ko smiling as A-ko appears on the horizon, suggesting the rivalry will endure despite recent dangers. The bond of friendship and the ongoing competition between the two remains unresolved.
When:End of day Where:Graviton City skyline
Who Are the Main Characters in Project A-Ko?
5 characters, among them A-ko Magami (Miki Ito), B-ko Daitokuji (Emi Shinohara) and C-Ko Kotobuki (Michie Tomizawa): who each one is and the part they play in the story. Every profile links to the actor’s page.
- AM
A-ko Magami (Miki Ito)
Played by Miki Ito
A high-spirited, red-haired high schooler with superhuman speed and strength who treats herself as an average teen. Despite her confidence, she worries about waking up on time and sneaking into class. Her powers make her a pivotal force in both school life and battles against the invaders.
- 💫 Superhuman
- 🎒 Teen
- 🏫 High School
- BD
B-ko Daitokuji (Emi Shinohara)
Played by Emi Shinohara
A rich, snobbish, brilliant rival who obsesses over C-ko. She deploys increasingly extravagant mecha to secure her position and outdo A-ko, pushing the rivalry to new heights. Her cleverness hides a willingness to bend rules when stakes rise.
- 💎 Wealth
- 💥 Rivalry
- 🤖 Mecha
- CK
C-Ko Kotobuki (Michie Tomizawa)
Played by Michie Tomizawa
A bubbly, carefree optimist who remains loyal to her friends. C-ko's positive energy and social bonds soften the rivalry between A-ko and B-ko. She becomes a focal point when D abducts her, prompting a joint effort to overcome the threat.
- 🎀 Cheerful
- 👭 Friend
- 🪐 Ally
- D(
D (Operative DC138621-S113) (Tessyo Genda)
Played by Tessyo Genda
A trench-coated spy from an alien faction who monitors A-ko and C-ko. D reports to a larger spacecraft and ultimately abducts C-ko, revealing the Lepton Kingdom's stakes behind the conflict. Calculating and elusive, D drives part of the film's intrigue.
- 🕵️ Spy
- 👽 Alien
- 🛰️ Interstellar Plot
- CN
Captain Napolipolita (Shuichi Ikeda)
Played by Shuichi Ikeda
Captain of the alien ship, shown as a capable commander with a wonky sense of humor and a flair for drinking. He clashes with both ground defenses and D's scheme, providing occasional comic relief amid the battle.
- ⚓ Captain
- 🍷 Drunk
- 🚀 Spacecraft
Where and When Is Project A-Ko Set?
Project A-Ko is set in Graviton City and Graviton High School (16 years after the alien crash). Here is why the time and place matter to the story.
When
16 years after the alien crash
The story takes place sixteen years after the cataclysm that devastated Graviton City and prompted its reconstruction. It follows a new school year for the three teens, blending ordinary high school life with sudden extraterrestrial threats. The setting juxtaposes familiar routines with ongoing mecha battles and an active alien presence.
Where
Graviton City, Graviton High School
Graviton City is a rebuilt metropolis born from a crater after an alien crash. The city functions as the battleground where large-scale alien technology and human defense collide, while daily life unfolds in its streets and schools. Graviton High School sits at the heart of the story, where A-ko, B-ko, and C-ko navigate friendships, rivalries, and extraordinary abilities amid a city under threat.
- 🏙️ Graviton City
- 🛰️ Alien Invasion
- 🎒 High School Life
What Are the Themes of Project A-Ko?
3 ideas the story keeps returning to, among them Friendship, Rivalry and Invasion.
-
01
Friendship
The trio's bond anchors the film, as A-ko, B-ko, and C-ko balance rivalries with loyalty. They learn to trust each other despite personality clashes, especially when the stakes rise. Their alliance becomes crucial when a common threat forces them to act together beyond schoolyard squabbles.
-
02
Rivalry
B-ko's obsession with C-ko drives escalating schemes and flashy mecha battles, while A-ko's own strengths test B-ko's plans. The rivalry fuels the action and pushes each girl to grow, even as friendships form under pressure. The escalating conflict expands from the campus to the city as alien forces arrive.
-
03
Invasion
An all-out alien assault breaches Graviton City's defenses, drawing in the military and civilians alike. The girls' personal conflicts intersect with the larger war as D, the spy, and the invading forces threaten their world. In the end, survival depends on adapting to chaos and protecting one another.
What Kind of Film Is Project A-Ko?
Whimsical in tone, with fast pacing and a straightforward story, going by the plot summary.
- Tone
- Whimsical
- Pacing
- Fast
- Story
- Straightforward
- Intensity
- High
- Ending
- Happy
A wildly energetic and absurd anime comedy that delivers non-stop, over-the-top action sequences and a playful rivalry, all wrapped in a colorful and humorous science fiction parody.
- energetic
- silly
- chaotic
- colorful
- playful
- absurd
- high school rivalry
- alien invasion
- superhuman strength
- mecha battles
Quiz
How well do you remember Project A-Ko? Test yourself on the story.
