Ruu Brandel, a genius wizard with a talent for thousands of years. One day helped a beautiful aristocratic daughter, Franc and was to be assigned to “Magic Girls' Gakuen” where he acts as a teacher! Now, the “non-standard” teacher life by the strongest wizard opens!

(Source: MangaUpdates)

"Ecchi stuff that also may have a story...."

Six old friends in their thirties meet at a gathering of former high school mates. Today, everyone has a stable life, but they feel dissatisfied. Because they left behind their childhood dreams, those they would like to find back...

Rose is a hitman allowed residency in exchange for her services, but she is careful to keep it secret from the light of her life, her girlfriend. Benika wishes for a relationship where they can see each other more often, but she must also keep it secret from her wholly devout parent. Father Shirogane is concerned his daughter cannot tell him who she is dating, but he also struggles with the hitman who keeps returning to confess her crimes. Amid all the secrecy, a new conspiracy surrounds the three of them, granting Rose an unexpected chance to leave the hitman life for good. But at what cost?

On that day, suddenly, every single male virgin over the age of 18 started dying rapidly, causing a huge panic across Japan! Sex industry prices skyrocket overnight, forming angry mobs of terrified virgins, and the government knows not how to handle such an unprecedented crisis.

Enter our protagonist, 17-year old virgin Kurumi Eiri. He has to get laid before his 18th birthday, or he'll die! He hurriedly confesses to girls, only to be shot down without any hope. Is there any way for him to graduate from virginity?! What will the virgins do when death is staring them in the face?!

At a certain cafe, there are many different people with unique attributes such as tsundere, little sister, etc. The new part time worker Maika has been asked by the shop owner to fill the role of super sadist?! Now, while doing her best to work hard, she also blossoms as a super sadist.

The cute Kyuu-chan is a wonder cat. Dance, sing, be happy together!

You're a good guy !!!! Sometimes they are friends, sometimes they love each other, sometimes rivals? Momo that can't be released a little while well, and is always taking care of the trouble. Ayatsuki,a tsundere (?) Story of twin high school students who are the opposite of personality!

A surreal gag manga featuring beautiful girls and games! A comedy manga of bishoujo and games that will keep you laughing!

The struggle for survival between humanity and Parasites continues unceasingly around the world. Unfolding in the shadow of the legends of Shinichi and Migi, another battle for existence is revealed. Fukami, a veteran detective, investigates a brutal mass murder, and is unsettled by the composure of the informant: high school student Tatsuki. The source of that discomfort lies within Tatsuki's family...
The tale on the other side of the ageless masterpiece "Parasyte" begins here!

The manga focuses on a hero who is married, but monster girls seeking children of heroic lineage keep coming after him to steal him away. The hero's wife chooses to deal with the monster girls herself.

Yamazaki Yuri is a high school freshmen. She changes school in the second semester and moves to the dorm. Before her arrival, there are some rumors being spread in the dormitory. This story is about the daily life of the misunderstood girl, Yuri and her dorm-mates.

Manaka Makoto, a 24-year-old salaryman without a girlfriend, wakes up one morning suddenly changed into a female, and a knockout at that who attracts just about everyone of the opposite sex. And when he learns through a magical being that the only way he’s going to become male again is by getting aroused (as a woman) he tries to find a way back without any success. But when success finally comes and he switches back, he discovers that he will switch back and forth ANY time he gets close to someone sexually, and there are exceptions…

7 high school students that got caught in an airplane accident wake up, in a middle age like fantasy different world where magic and beast-man (juujin) exist.

But they do not panic at their current situation!?

They build a nuclear plant in a world without electricity, they control the economy of a large city in a short work's trip, and finally for their benefactor's sake who are suffering from the misgoverment, they declare war on the evil nobles.

So... none of them is a normal high school student, each of them are super human high school students that stand at the top of politics, economics, science and medicine!

From Tranquil Spring:

Short random school life chapters about a group of girls who attend Watermelon Junior High.

The story begins with Yggdrasil, a popular online game which is quietly shut down on its last day. Our protagonist Momonga decided to stay until the last moment in his beloved game and wait for the force logout. Unexpectedly, the server did not shut down and Momonga is stuck in his skeleton body and got transferred to another world. "The powerful Overlord" needs now to discover a new world and face the continuous challenges.

Having no parents, friends, or place in society, this ordinary man strives to take over the new world the game has become.

We trust professionals with our money, our possessions, our health...even the future our children. You could say such individuals deserve to be called "professionals" because they act in a way that merits such a high level of confidence and faith. However, there's a sacred ground that most people are loath to let even the most consummate professional trespass into: the mind. Is it possible - or safe - to let another human being psychoanalyse you completely? Who can guarantee that the experience won't irreversibly change you...for the better or the worse?

This is the story of a genius psychologist, Dr. Frost, who's capable of just such a deep level of psychoanalysis.

Amagoe Homura, a high school student you can find anywhere, finds himself in a devastated version of Shibuya. A mysterious figure calling himself "Unknown" tells everyone that they can commit any crime in this world, and forces them to participate in a death game where they compete on who can commit the most severe crime...!

Having become overwhelming strong, a mage was bored with his life and decided to reincarnate in another era about 1000 years later.

But after reincarnation, the mage now known as Kurt saw a world where magic had declined, and the mages of the era are overall much weaker than those of 1000 years ago.

It also seems that Kurt is being looked down upon for his "Gold Magic" as it is called "Defective Magic Power" in this era.

In order to investigate the mysterious decline of magic in this era, Kurt enrolled in the Magic Academy at the Royal Capital and showed his extraordinary talent where he would become unparalleled in this second life of his too!?