It all started when Keita Ito received a letter sealed with the initials for BL Academy, the most sophisticated all-boys academy in the country. Keita Ito has been accepted into the school with an average GPA, as well as average skills in sports and writing, and doesn't think that he belongs there. But with help from the other students, will he be able to make it in BLA? (summary taken from ANN)Started as an (explicit) Boys Love Game, then adapted into a considerably less explicit PS2 port, a similarly tame anime and two manga series by You Higuri which resemble the original game (available in English from Tokyopop's BLU imprint- one condenses four of the VN routes into a single bound volume each note The routes are: Niwa, Nakajima, Kazuki, Shichijo - the last being the only one unavailable in English and the second, Gakuen Heaven Revolution, merges all of the routes' stories into one series of events), as well as various drama CDs and other ancillary merchandise (including a sequel of sorts).
This show provides examples of:
Abusive Parents: Iwai's parents (psychologically) both demand him to give up his school life and continue painting so his father can claim them as his own - making him nothing more than a worker, which drives him to self-harm. Keita helps him defy his parents and eventually they (somewhat gracefully) cut ties with each other.
Annoying Younger Sibling: Keita views his younger sister, Tomoko, as one when she starts acting like a brat and being rude to Kazuki when he visits Keita's house during vacation, because it's the first time she's seen Keita in a long time and he isn't paying her any attention.
Blackmail: Taki is blackmailed by the Vice President, so long as he does whatever the Vice President says (such as locking Keita in a shed so he won't be able to take the exams and have to drop out) he'll be fine.
Born Lucky: While all the students at BL Academy are supposed to have some kind of ability or skill, the only thing Keita has is his freakishly good luck.
Bridal Carry: Keita gets carried/held like this twice by Naruse in the anime.
But Not Too Foreign: In the anime, Shichijou is half-Japanese, raised outside Japan, and initially spoke no Japanese, permitting a touching flashback to when he was befriended by "Queen" Kaoru.
Calling the Old Man Out: The conclusion of Iwai's story line. He tells his mother he's had enough of his father stealing his art work, wrecking his father's career and tells his mother to chose either her husband or her son. She picks her husband but Iwai's happy with the conclusion.
Custom Uniform of Sexy: "Queen" Kaoru wears a white gakuran uniform rather than the red blazer of the rest of the cast.
Cutting Off The Branches: The anime plays this straight, pairing Keita with his childhood friend Kazuki Endo, with the other guys being more-or-less interested but never serious contenders. The manga handles the problem by following a different plotline in each volume; the first hooks Keita up with "the King" Niwa and the second shows what would have happened if he had ended up with the Bespectacled Bastard Boyfriend Nakajima instead. Coming soon in English are volumes revolving around Kazuki and Shichijou.
Averted with Gakuen Heaven Revolution that merges all of the stories into one combined route.
Distressed Dude: Keita needs rescuing multiple times across the series, from either being kidnapped (by the boys who Niwa refused to let into the Judo team in both the game and Niwa's manga volume (rescued by Niwa), or by Jin Matsuoka (rescued by Kazuki)) or locked in a shed for various reasons (by the twins in the anime for revenge (rescued by Nakajima) and Taki in Revolution to stop him taking the exams, meaning he'd get expelled (rescued by Kazuki)).
Dude Looks Like a Lady: The "Queen" Kaoru, who Keita mistakes for a woman until he speaks (as he has a very masculine voice).
Dueling Hackers: Nakajima from the Student Council and Shichijou from the Treasury frequently engage in this.
Eye Catch: In some cases there is action in them. One had student council president (called "the King") approaching the treasury president (called "the Queen") as if flirting or asking for a date. The next Eye Catch is the King on the floor holding his cheek, as the Queen walks away looking irritated and with a sore hand.
Eyes Always Shut: Shichijou, although he opens them whenever he's required to look handsome or sexy.
Humiliation Conga: A small but humorous example happens to Iwai in the onsen when everyone is trying to figure out what pervert used Shinomiya's toothbrush. Each result is consistently ruled down to him and by the time they figure out it was just the cat they only then realize he has been drowning himself for the past few minutes out of embarrassment.
Indirect Kiss: Parodied: at one point the whole cast discusses who was it that used a character's toothbrush, something that would constitute an indirect kiss of the creepy kind. Bonus points for this taking place while everyone is naked. As it turns out a cat was the culprit. Of course.
Innocent Innuendo: Several episodes of the anime open with different couples doing this.
Japanese School Club: Multiple members captain specific clubs: Iwai captains the art club; Naruse, tennis; Niwa used to captain the judo club; Shinomiya, archery and Kazuki is part of the crafts club.
Keita has to introduce himself to each club at the start as a "mission" from Niwa to welcome him to the school.
Kazuki is also older than he looks, though how old he really is isn't said.
Porn With Plot: The game, although there's not much in the way of porn and it's mostly fairly non-explicit.
Not to mention the various manga. Averted with Revolution (so far).
Rape as Drama: Umino's and Taki's rape scenes are both portrayed this way. In contrast to Nakajima's rape of Keita, which is played as fetish fuel (in the manga it's stated to be consensual and kinky).
The Promise: Not as eventful as most examples of the trope but the fact that Kazuki promised Keita that one day they would attend the same school is the whole reason why he is attending Bell Liberty Academy. It almost seems to overlap with Childhood Marriage Promise.
Third Act Misunderstanding: The second half of Nakajima's volume, where Keita believes that Nakajima is doing some dodgey dealing with the Science Club when really he was trying to see whether or not the Science Club was doing its own lot of dodgey dealings. He just decided not to explain to Keita or anybody else what he was doing and let Keita get worked up about incorrect rumours - he apologised at the end that it was all his fault.