Cute high-school girls, boobs, panty shots, battles, conspiracy, evil taking over the world... What's not to love?Drawn by famed hentai artist Takeda Hiromitsu, the story takes place at a special school called Tenbi Gakuen, where the only students admitted are those who are able to control a source of energy found in all living things called "Element". Manipulating those "elements", they are capable to perform common psychic ability like psychokinesis..., to enhance their physical abilities and to be able to use magical artifacts called Maken. These Maken give the users specific and varied abilities, like superstrength, turning one's body into steel, manipulating water... There are two types of Maken, external and internal. External Makens look like normal weapons and add-ons, while internal maken are embedded inside the user's body. Since they are powerful artifacts used by ancient gods, students normally do not have true (i.e. original) Makens, but only use imitated Makens that are forged by resident Maken-smith Gen Tagayashi. Also, different countries apparently have different types of Maken, for example, the Jingu used by members of Venus group.The story specifically revolves around a group of students called the Maken-ki, which is a special force unit under the school student council, whose responsibility is to mediate Duels between students in the school (exactly like what it sounds, i.e. fighting) and to resolve any disputes that are not Duels (i.e. not following the common rules of a Duel). Since the school is quite lenient regarding fighting between students, the Maken-ki group is often quite busy, and attracts powerful students to be its member, but it's an implied rather than official requirement. The Maken-ki unofficial responsibility is also to protect the school from external harm.Tenbi Gakuen was originally a co-ed school, but turned to an all-girls school after an unsavory incident done by the boys. However, at the time the story takes place, Tenbi Gakuen has once again turned into a co-ed school, admitting a group of first year male students. Our protagonist, Takeru Ohyama, is one of them. At the school, he meets again his childhood friend Haruko Amaya, a strange girl claimed to be his fiancee Inaho Kusiya, and a blonde ojou Kodama Himegami, who initially has some strong enmity against him, but soon becomes one of his friend. He also meets a like-minded male student Kengo Usui. After a whim by the school principle Minori Rokujou, he and the three girls end up living in the same room. Furthermore, after being persuaded by Haruko, Takeru decides to join the Maken-ki, where he meets another bunch of cute girls. Cue the harem, my friends. Takeru initially has no compatible Maken, and has to wait for a bit of time for Gen to make him one, and understandably, he turns into a typical weak but want-to-protect-everyone type of hero, even though all the girls surrounding him are much more competent that he is. Even after having a Maken, he's still quite incompetent. Fortunately for him though, he has a berserk mode, i.e. Blood Pointer, which allows him to absorb "elements" around him (from his enemies and friends alike) and release it in a crippling shot.It is quite a typical harem-ecchi-magical girlfriends (sort of) manga and it could be quite a read if you're in these sorts of thing. The art lives up to the artist's hentai fame, and so does the ecchi. Even though you're not in it for the ecchi, there's still some good fight in there.
World of Action Girls: All of whom could probably beat you up. Not that the guys in the series seem to mind it however...
All Anime Is Naughty Tentacles: In the OVA. Syria shows up just in time attack it, only to purposely get captured by the same octopus when she sees the other girls calling for him to help them just so she could do it as well. The girls immediately point it out.
Almost Kiss: Inaho and Takeru nearly have one in the 2nd OVA. A jealous Haruko breaks it up before they manage to do it however. And by doing so, she inadvertently stopped Takeru from changing back to a guy, as Syria turned him into a girl earlier, and a kiss from a girl was required to change him back. He then accidentally gets kissed by several other girls after Haruko's forceful breaking up the two threw him into Himegami.
Animal Motifs: Inaho ties two small parts of her hair in side topknots, which make her resemble a Cat Girl at first sight. She also acquires a pet cat which she often carries around on her head.
Her perpetual Cat Smile doesn't help matters, either.
Amusing Injuries: In episode 2, after being caught spying on the girls during a physical examination, Kodama knocks Kengo and Takeru from the tree they were on by landing her feet on their faces. A few moments later, when the boys are going through their examination, both guys have a footprint on their faces.
Big Damn Heroes: The Venus merc unit does this for Haruko at the end of episode 12, allowing her to perform one to save Takeru.
Takeru himself gets one in the first part of the OVA, and later the entire Maken-Ki does one for him, Haruko, and Inaho.
Bleached Underpants: The artist has done Hentai mangas, some of the Netorare; ever since Takeda has appeared less frequently in the erotic manga scene, and for Doujinshi works he will always use a pen name now.
Boring but Practical: Takeru's Maken, Overblow, which causes the Maken he touches to increase its power exponentially, to the point that the user will not able to control and use it anymore. Nothing flashy, but quite effective. Also a double edged sword however, if the user has enough ability to control the Maken.
Brainwashed: Ouken can do this to anyone he pleases, including rewriting memories and entire personalities. Therefore, everyone is terrified of him.
Damsel in Distress: Happens to several of the girls in the first OVA when a giant octopus grabs them. Syria then arrives in an apparent Big Damn Heroes moment, only to then subvert it and invoke this trope and purposely get herself captured as well when she sees several of the girls calling for Takeru to help rescue them.
Innocent Cohabitation: Takeru is put in the same dorm room as Inaho and Himegami purely on a whim. Haruko joins in with the excuse of keeping things in check (of course she most likely has a deeper reason).
I Thought It Meant: In episode 8, after Haruko and Inaho discover that Syria took Takeru on a date, they find a letter on one of Syria's friends that mentions S&M. Both girls immediately have perverted thoughts, until they find out what those letters really meant. It was Song & Music, since Syria was a pop idol, and was going to sing all of her songs to Takeru, who seems bored of it.
I Want My Beloved to Be Happy: Inaho seems okay if Takeru doesn't choose her, so long as the other girl he chooses is Haruko. She still gets jealous if any other girl shows interest in him however.
Man, I Feel Like a Woman : Happens to Takeru in the 2nd OVA. Syria, who changed him after catching him playing with Aki-sensei's boobs, tells them he can change back if he gets a kiss from a girl. After Haruko breaks up an Almost Kiss between Takeru and Inaho, he ends up getting accidentally kissed by several others, changing back and forth between a guy and a girl. They finally leave the room, causing him to lament stuck being a girl, when Haruko kisses him to change him back.
After the credits, it turns out that Kengo was also afflicted by the gender-bending spell Syria cast. Unlike Takeru however, he has no idea how it happened, and doesn't get to enjoy spending time with the girls either.
MegaTonPunch: The male characters are often on the receiving end of these, for both justified, as well as unjustified reasons.
Meido: Azuki. Practically all the main girls in episode 11 when they work there for a special event to raise money for a school trip.
Ms. Fanservice: Aki-sensei, the school nurse. Huge chest, skimpy clothing, and she performs her magical Intimate Healingby straddling her patient in Reverse Cowgirl position. Turns out she's a virgin.
Syria invokes this trope as well when she shows up later in the season. During her introduction in episode 8, several scenes are of her wearing various outfits. She even Lampshades this trope in episode 9, when Kengo pulls off the top of her swimsuit, only to find out she has a bikini underneath. She then mentions saving the Fanservice for later, and the very next scene shows some bouncystuff. Several male characters also point this trope out right after.
Mundane Utility: Celia's maken allows her to invert anything. She first uses it to reverse velocities (throwing someone running towards her backwards), but she soon proves capable of using it on more abstract things. At one point she reverses Takeru's determination, causing him to just stop fighting. She mostly uses this awesome power to be a girl.
No Animals Were Harmed: In episode 3, a bear wanders into the pool area where the Kenkeibu are meeting up. They're forced to deal with it, and they use their various abilities to launch the bear away via a giant wooden plank, but then make a magical cushion appear to avoid making the bear go splat against the mountain. A few scenes later the bear, a bit dizzy but no worse for the wear, wanders off after recovering.
Oblivious to Love: Largely played straight with Takeru. Lots of girls throw themselves at him, but he doesn't seem to take it any further. Then again, Haruko has a habit of beating him up if they do try anything with him too...
The entire Maken-Ki feels this way after witnessing Minori's power punch in the OVA.
Positive Discrimination: The female cast are shown to be vastly superior in using their Maken and in overall strength, while the male cast are relegated to a few instances where they do win against the girls at some particular event, but even so it's mostly exclusive to Takeru due his protagonist privileges and male antagonists, with the latter being a blatant obstacle for the girls to overcome.
School Idol: Celia is an idol from America. Turns out she's a wrestling idol. Should have done a little more research before you tried to tackle her, Inaho.
Sensei-chan: The school principal Minori is a borderline case. She is relatively young, sexy, ditzy and often on friendly terms with students (e.g. she allows the students to call her by her first name). However, she can be very authoritative when she wants to be. Being one of the strongest fighters in school certainly helps her in it.
Too Hot for TV: The series has some questionable use of Lens Flare censor, while in some cases they are rightfuly blocking bare breasts, other times they're blocking Panty Shots, for no reason other than blocking some detailed lines of their parts, it wouldn't so bad if it didn't happen frequently.
Tsundere: Haruko is a Type B. Himegami is a Type A.
Unprovoked Pervert Payback: Takeru is often justifiably punished for his various actions against the girls, such as peeking at them in a changing room. Other times you have to wonder if he really deserved to be hit, such as at the end of the first episode in the first season, when Haruko catches Inaho sleeping next to him, and punches him in the face. Inaho probably snuck into his bed while he was sleeping, so Takeru probably had nothing to do with that, yet got hit rather hard for it.
Won the War, Lost the Peace: Played for laughs in episode 9. The boys want coed swimming classes, while the girls want segregated ones. They decide on it by having a boys vs girls water calvary battle. In the end Takeru is the last person with his headband still on, and the boys win. But then the girls force the boy with the invisibility Maken to turn them all invisible, so while they're in the pool together, and the girls can be heard, none of the boys can see them.
Wouldn't Hit a Girl: Takeru. Justified by the fact that he developed this complex because of the tragic death of his mother. Other characters, however, repeatedly warn him that he has to get over this.
Arguably full-out deconstructed when someone asks him what he would do if he saw a girl beating up another girl (a very real possibility in this school), and he can't come up with an answer. "Unless you're saying it's all right for girls to beat up girls?"
Zombie Apocalypse: Played for Laughs. All of the male students in Takeru's class essentially have that "look" when Syria arrives in their class in episode 8 and proclaims him to be her boyfriend. They even parody bringing him down as if to eat him, only to beat him up. When Inaho gets upset at Syria's declaration, Kengo immediately points out that Takeru doesn't have long to live anyway, right before they take him down.