As a 6 Year Old, Rintaro is diagnosed with Henisei Tashu Ijou Syndrome (also known as Hentai Syndrome), a disease that could kill him if he gets sexually aroused. To save him and provide a way for him to live as normal a life as possible, his father teaches him the ways to control his body and mind for ten years in the mountains, with the martial art of the Koei Sougetsu. When he's 16 he chooses to enroll Nangokuren High School, which he assumed to be the biggest all-boys school in the country but is actually the biggest all-girls school that has just gone coed. On his first day he stumbles upon a large scale battle and learns that the first rule of the school is that it "Abides the Law of Nature" which has turned the campus into a war zone-like environment. Rintaro now sees transferring out as his mission, but will it be that easy now that he's caught the eye of the 3 "Dragons", the bodacious female leaders of the three biggest factions around?

Crossover between Ore Monogatari!! and Nisekoi.

A powerful grand wizard named, “Raim” reappears after a millennium because of a failed experiment. While sets out to regain his lost tower, he meets “are” and “ere” who have been trafficked as slaves... a combination of a weird grand magician who only uses his wits to make money and the cute, lovable brother and sister of the miao tribe! Their endless adventure is beginning to unfold. Editorial staff’s comment Will Raim be able to regain his lost tower?! Manhwa you may like: + This is another ambitious work of Sung San Young, +  + The God of High School

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Hida Kizuna possesses the HHG (Heart Hybrid Gear) ability, but it is not strong enough to make him particularly important. His older sister calls him to transfer to a strategic defense school, where many of the students (many of which are large-breasted girls) use their HHG abilities to fight invaders from another world while wearing extremely skimpy pilot outfits. Kizuna's fighting ability doesn't measure up, but his sister has another plan-- apparently having erotic experiences with Kizuna will allow the girls to replenish their energy or power-up. It looks like his new school life is going to be full of embarrassment.

Shouta's an otaku who's only love in the world is manga. One day, he happens to wish for one of his favorite character, Nagihara Sora, to be by his side...and so she does! But what is he to do when he finds that his gentle and weak Sora has turned out to be a violent gou-dere (an unstoppable force that does whatever she pleases for her master, out of her love for her master) who views the world as a ero-game to be conquered for his sake?

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Amon Patricia is a Demon Lord who ruled the land but after just barely escaping the Clan of Light finds her way to the Human World. Now there, she goes about searching for work and starts by looking at a family restaurant by the name of "Humming Dining" . With her seemingly bottomless appetite and love of our hero's food, will our hero be able to keep his sanity as he goes about making her an exemplary employee AND fill her stomach?!

Seto Yu is a 12-year-old boy, that is abused violently by his father. One day, he is transported into a fantasy world with video game mechanics after being killed by his abusive father and he discovers that he has the unique ability to steal other people's skills for his own use. He quickly uses his special power to take revenge on the townspeople who bully him and obtains a harem of beautiful girls who love him unconditionally even though he shows no romantic interest in any of them and has the physical build of a skinny teenager

Hachimitsu Private Academy was a revered and elite all-girls’ boarding school on the outskirts of Tokyo…once upon a time. But with the new school year comes a revision to school policy: Boys are to be admitted into the student body for the first time ever. But on his first day at Hachimitsu, Kiyoshi Fujino discovers that he’s one of only five boys enrolled at the school. Their numbers overwhelmed by the thousand girls in the student body, is it heaven or hell that awaits these five (un)fortunates?! Note: Was one of two winners of the Best General Manga award alongside Gurazeni at the 37th Kodansha Manga Award in 2013.

Even though this is a sequel to To-Love-Ru, all of our main characters make an appearance along with some new additions. Rito continues to be caught in over the top uncensored ecchi scenarios. The alien Deviluke sisters still use their unique abilities to grab Rito's love confession. Nana and Momo have transferred into the school and meet Mea, who seems to be a worry free and joyful girl. Momo in particular wants to share Rito and create a harem for him. While scheming her plan, she confronts Golden Darkness also known as Yami. They are interrupted by possessed students who begin to fight with abnormal strength. Now the new plot line appears as a mysterious person who's in control of the students tests Yami's assassination skills. Who is this new enemy?

The first year middle school Student Council Chairpersons (iincho) come from different elementary schools and different backgrounds. These six cute, glasses-wearing middle school girls often fight, but they have a common enemy in the sexual-harassing Student Council President. Will they be able to do their job without being distracted by infighting or thwarted by the controlling Student Council President?

Tezuka Kanna, 15, is a girl who loves manga. For that reason, she specifically enrolls in a course for manga in Tokiwa High School as a freshman! No one knows though, that she is already a debuting manga artist. ...But wait, what's this?! Three handsome guys suddenly appear, and what's more they know!!! Kanna (God) vs. Those Guys (Devils)!!! What would happen next?!

A Keio College (top notch Tokyo college) exam candidate, Touma Inaba, is interupted when a cute young girl, Urara Kasuga, arrives at his hotel room door. She later turns out to be his cousin who he barely remembers from his childhood. Urara, who had felt something special for him (an other-than-cousinly-love), invites Touma to live with her since he has no place to stay other than the hotel room. Before taking the test, Touma meets Meiko Yotsuba, a beautiful, sophisticated woman also trying to get into Keio. Meiko gets into Keio but Touma does not, due to a cold Urara had given him shortly before. Although he did not make it, he pretends he does to earn the respect of Meiko. Touma is caught up in a love triangle with Urara and Meiko, while struggling to keep Meiko believing he's really a Keio student and still be there for Urara at the same time.

From FCTranslations: Azuki, a young girl whose father is the president of an entertainment corporation, is always out of luck when it comes to dating. It seems like every boy she had dated before all tried to use her as a bridge to get into the world of media. So when Azuki met the guy of her dreams, who also happened to be a contestant in the audition her father set up, she wasn't so sure what to do anymore. *Contains in the 4th volume, Juliet Club: An idol in a famous group tries to escape from his fans by studying in the library. There, he meets a girl who he mistakes as one of his fans and tries to send her away. It turns out that the girl actually doesn't know that he is an idol. They continue to study together in the library, neither of them knowing the other's name, while love slowly blooms between them... *Also another story titled We, the Demon, and Christmas Every year at the time of Christmas, the demon appears, and the Angel twins intend to catch him.

This is about a male student in an academy that teaches students to raise dragons. That particular male student's dragon finally hatches one day... and it's a beautiful girl. The adventure begins.

From MangaHelpers: Mikado Shuuji is just an ordinary guy, but he has a very unusual knife that he uses for cooking. It's actually a famous short sword that marks its owner as the head of the ninjas, and now there are hot ninja girls coming after him to take it back. Hinamori Botan is one of those hot ninja girls, but her efforts to attack Shuuji mostly end up inadvertently stripping her. After she concludes that she does not want to steal the sword and kill Shuuji, she ends up deciding to serve him as a ninja instead. Now she must protect him from the other ninja that come to claim his sword and his life.

Kei is a normal--if very pretty--young boy in high school. One day, he falls ill and is taken to the hospital. They find, much to everyone's surprise, that "he" actually has a female genotype even though "his" phenotype is male!! A little bit of surgical work solves the problem, and cool male hero Kei becomes innocent female heroine Kei. And what a female! "He" was cute before, but she is a beauty now.

From Viz: The trouble and fun began when ordinary teenager Tenchi Masaki inadvertently released the legendary demon Ryoko from his grandfather's shrine. Turned out Ryoko was actually a marooned space pirate! Since then, she's become Tenchi's unwanted houseguest, attracting a host of other troublemaking alien women: Ayeka, a haughty alien pricess; Sasami, her mischievous little sister; and Washu, Ryoko's mad-scientist "mother." Add Ryo-oh-Ki, an adorable little carrot-eating spaceship, and you've got one full Shinto shrine!

Tenchi Masaki is a shy high school boy, yet honest and hard working. He looks forward to living a basic humble life, taking over his grandfather's shrine. However, nothing is ever as simple as one would want, as Tenchi soon learns. A series of events beginning with the sudden appearance of Ryoko, the space pirate, creates madness in his home. Now he must figure out how to juggle 2 princess's, a space pirate, 2 galaxy police, the worlds most intelligent genius and a Rabbit-turned-Spaceship in his quiet country home.

Serinuma Kae is a chubby second-year high schooler and an avid fujoshi who secretly ships her classmates, Igarashi-kun and Nanashima-kun. The death of her favorite anime character causes her to become stressed and lose weight rapidly. Now that Serinuma has become an attractive girl to her classmates, her snarky kouhai Shinomiya-kun, and her senpai Mutsumi-senpai. How is she going to deal with them...with her constant BL-filled, fujoshi mind?!

Ai Shiratori is your average junior high school student with a crush on a boy, Hikaru Kamishiro. With a love so rampant and true, and an imagination as wild as any girl's Ai sometimes has rather... ecchi dreams. But none of those dreams could ever prepare her for the reality that came to her in the form of the Archangel Raphael.You see, Hikaru Kamishiro is not your average boy. Hell has plans for him and Heaven isn't about to let those plans come to fruit. While Hell sends their Hell's Apostles to get Hikaru to commit the seven deadly sins and drag him into hell, Heaven sends their secret weapon: Ai. What is Ai's mission? Nothing short of consummating her love with her beloved Hikaru... but wait by consummating you mean... sex?! Can Ai handle the Archangel's request and save her true love?

The story takes place in a world after the legendary warrior defeats the demon lord. After he brought the peace to the world, he decides to set another adventure to search for his wife.

Hotaru Kunoichi of the Iga Village has accepted a request to infiltrate Oda Nobunaga’s castle, Aduchi Castle. Under the guise that she is the younger sister of Mitsuhide, Nobunaga's confidante, she investigates the Oda army for dissenters. Hotaru deepens her relations with great military commanders, from Nobunaga to Hashiba Hideyoshi and Tokugawa Ieyasu. However, it will all be over if they find out who she truly is . . .