O centro da série fica em torno de Ooyama Takeru, um garoto normal e pervertido, que se matricula na academia Tenbi. Essa escola já foi somente de garotas e se transformou em uma escola co-educacional (que recebe meninos e meninas). Takeru não sabia, mas os alunos admitidos são aqueles capazes de controlar uma fonte de energia encontrada em todas as coisas vivas, chamada Elemento. Além disso eles podem usar artefatos mágicos chamados Maken, que dão a seus usuários habilidades específicas e variadas.
Iori NomizuInaho Kushiya
Misuzu TogashiAzuki Shinatsu
Hitomi HaradaAki Nijou
Noriko ShitayaHaruko Amaya
1 - Magical Security Organization
Hijinks and wardrobe malfunctions abound at Tenbi Academy as Takeru and the rest of the school's security force try to track down a perv who's been taking lewd photos of female students and posting them on the school bulletin board-along with their bras!
1 - The Day We Swore to Heaven
Takeru's first day at the Tenbi Academy is full of fights and panties. After accidentally kissing a second-year girl, she challenges him to a duel in front of the entire student body. Without a Maken or Element, how is he supposed to protect himself?
2 - I Love Takeru-kun!
A graduate of the academy returns and uses her clothes-shredding powers to steal Haruko's memories and Maken! The security team tries desperately to track down the thief, while Inaho and amnesiac Haruko fight over Takeru's affections.
2 - Girls Are Amazing
The beginning of the school year could only mean one thing: time for physical exams! But after getting caught peeking in on the girls from his class, Takeru finds out that he's an anomaly at Tenbi, and that no Maken can be matched to him.
3 - Meowken-ki?
When Inaho brings her pet to school, the kitten displays an amazing Element power-and turns the girls of Makenki into sexy human-feline hybrids! Can Takeru get things back to normal before the situation devolves into one epic catfight?
3 - Welcome to Maken-ki
Takeru decides to join the Security Committee! To welcome its new members, the Committee takes a trip to the hot springs. Things are going well until a bear shows up, giving the girls of the Tenbi Academy a chance to show off their special powers.
4 - Man *Heart* Cos
When the school holds a manga festival, a couple of hornballs use Maken to shrink the costumes right off the curvy contestants in the masquerade contest! Can anyone save the day - or will the student body bare all!?
4 - The Enemy Is at Tenbi
Himegami asks Takeru to go on a shopping date! Of course, she has an ulterior motive: to inspect the mysterious mark on Takeru's chest. Sounds easy enough, but her plans are interrupted by her roommates, her fan club, and an unknown stalker.
5 - Begging Teacher
Aki, the buxom school nurse, needs someone to pretend to be her boyfriend-so who better than Takeru, one of her students? When the two faux lovebirds end up handcuffed together on a romantic deserted island, things get really, really hard for Takeru.
5 - The Strongest Girl in Tenbi
It's time for the clubs at Tenbi to negotiate their annual budgets! Takeru and Uru try to work together to help the Security Committee, but their work is interrupted by an assailant who claims to be responsible for the random acts of violence on campus.
6 - Villainous Leadership Committee
In order to prove herself worthy of joining the Leadership Committee, Uruchi must complete a series of complicated trials-which somehow involve learning absolutely everything there is to know about Haruko's body and bathing habits!
6 - Like Rain on a Sunny Day
Since Takeru's first day at Tenbi, Inaho has called him her fiancÃ©. On a rainy night, the story of their past together is revealed, and Takeru's Elemental powers surface in order to protect his friend (and an adorable new addition to the household).
7 - His Name Is Rudolf!
Kodama goes underwear shopping, but ends up blowing all her money on an adorable fluffy teddy bear! Naturally, though, the bear ends up being a complete perv with a mind of his own, and is bursting at the seams to get his paws on every girl in sight.
7 - The Goddesses Who Came Down to Tenbi
A group of beautiful, powerful transfer students arrive at Tenbi in order to root out a mysterious secret society. But before they can get to work, they'll have to prove their strength against the girls of Makenki in an epic volleyball showdown.
8 - Academy Harem
When the principal at Tenbi gets fed up with the school, she does the only logical thing and puts one of the male students in charge. Pretty soon the academy turns into one big harem full of erotica readings, bouncy exercises, and chest inspections.
8 - Syria Will Give You Everything
Syria is Tenbi's newest transfer student, and she's taken quite an interest in Takeru! What does she plan to do with him in the disused shack on the outskirts of campus?
9 - You Are More Manly Than Roses
The Leadership Committee president falls for a dashing boy. One problem: he's actually Azuki dressed in guys's clothing! Rather than come clean about the mistaken identity, the other girls make Azuki pretend to be a dude and go on a hot date with the pres.
9 - Stormy Games
The boys of Tenbi Academy petition the faculty for co-ed swim classes (for the sake of gender equality, of course). Naturally, the girls protest. There's only one way to solve this dilemma: a boys-versus-girls water fight full of swimsuits and nosebleeds!
10 - And So, Toward Makenki
Someone's broken into the principalï¿½Ûªs room in search of files that could put the whole school at risk. In order to track down the culprit, the Leadership Committee will use all their resources-including a new student, fireworks, and skimpy costumes!
10 - The Girls of Light and Shadow
If Takeru fails his Element practical again, he'll be kicked out of Makenki! Meanwhile, there's something not quite right about Minerva, the newest member of Venus to transfer to Tenbi. Why is she confronting Himegami in the woods?
11 - Macaron Limited-Time-Only Service Day
Takeru gets a Maken! The secret history of Makenki! A dangerous new threat! But most important, the girls of the Security Committee don their skimpiest outfits and get jobs at the local maid cafe in order to pay for their bikini-filled summer camp.
12 - Protectors of Paradise
Kamigari kidnaps Haruko as part of an incomprehensible evil scheme concerning Takeru's untapped powers. When things backfire and Takeru goes out of control, only one person can stop him from destroying Tenbi Academy.