Minami-kun spots a poster recruiting new members for the Magical Girl Club. Thinking "Cosplay cuties woohoo!" he decides to join... What the hell!? It's not cosplay—we actually become magical girls??

A slice of life love-comedy revolving around magical girls and slippery slopes.

From Tokyopop:
Merleawe has left her hometown and moved to the capital city of Viegald to attend wizarding school. On her way to her first day of school, she bumps into a man who kidnaps her and takes her to the castle, where she is charged with an awesome task—impersonating the kingdom’s master wizard! Fearing war would break out if it was known the master wizard, Sylthfarn, was missing, Sylthfarn’s inner circle has decided someone must pretend to be him. Merleawe tells them that she will take the job!

But not only does she lack the ability to cast more than simple magic, she also has no idea who the master wizard was! Unraveling the twisted threads of Sylthfarn’s disappearance and keeping up the appearances of both master wizard and first year wizarding student makes Merleawe’s every day challenging, magical, and amazing!

Yaida Masaki is a part timer, working as a janitor in a large publishing company. His hobbies include fantasizing about other girls, masturbating, and creating cosplay outfits for his fantasy girl: Oikawa Maiko. She is the daughter of the company president, and a far away existance for Yaida.

Recently, Maiko has awoken to her magical powers that were asleep inside of her, but she has trouble controlling them. More often than not, she ends up completely naked and either unconscious or unable to move. Maiko's mother has assigned Yaida to be her guardian and mentor to train Maiko to be able to control her powers. Will Yaido be able to train her to control her powers and become a proper magical girl?

There’s a legendary Bishoujo Game that has become popular among Japanese gentlemen.

Its name is “ Magical★Explorer” or Magiero for short.

The game’s protagonist has a cheat-like power with12 different beautiful heroines to flirt with, including additional 12 heroines from the DLC, a harem of 24 beauties. I have become that protagonist!………………Not. Instead, I have become the third-wheel character who always laughing like an idiot next to him.

Of course I was in despair at first.

Of course. If I am the protagonist I could have all 24 heroines for myself along with unparalleled cheat power. However, since I am the third-wheel there’s no heroine that would lay their eyes on me.

But now I couldn’t care less about the protagonist and his heroines. Why? Because I discovered magic. While I was using it, I have become interested in it. I want to master it. I want to become the strongest. Thus I have decided.

I would abandon half my role as a protagonist’s friend to train my magic and then I would beat the hell out of that cheat who can solo the Demon King.

Fifth grader Edojou Honmaru is one of the most trodden upon losers in his class, until he meets Magical Taruruuto-kun. Taruruuto's powers help him deal with all his hardships, such as girls, bullies, and numerous other challenges.

From Naver:

Iremy, Enz follows Ethermask around the world looking for a lost magic. Along the way, they find friends, defeat enemies, and uncloak the mystery behind Ethermask's immortality.

After their death, people's memories fade. The wish to retrieve the fading memories of his deceased girlfriend leads Wu Nian to become the Magician of Memories.

In a world in which, a long time ago, a mage was said to have been brought to destruction by a monster that ate it. Without parents, Kunimi and Chisayo are picked up by the owner of the region and are made to work. One day Chisayo receives a harsh punishment. Kunimi who thought that it won’t be a good idea if this continues, takes his sister and runs away. But then, they are swallowed by a large sudden crack in the ground ?

A soccer MANGA.

In a vast world, Emma, a girl with something lurking inside her, meets the magician Shion!!! What is the "Magico" ritual that will bind them together?! Even if they risk their lives to tread a path of thorns...!!

From ANN:
Kazuki Hayashizaki is a sword master who, after receiving a mysterious sign from a god-demon that uses summon magic, enters the magic department of the national knight academy. Though he was supposed to be the successor to the Hayashizaki sword technique, he begins a magic class with all girls. He will use both sword and summoning in the school battle coliseum.

Haruo is a boy with three younger sisters and a parent-less home. Although he does not know, his sisters all know magic. Now, they hire a maid who is also a new transfer student. She also turns out to know magic...

Manga about a girl who was looking for a job and ended up in a corporation of magical girls fighting monsters.

An evil dinosaur-wizard-alien named Goa plans to take over earth and get rid of all the humans living on it. Earth, the creator of earth, makes three "Rocketonians" to stop him: the golden giant Magma, his mostly absent throughout the whole series wife Mol, and their son Gamu, who is made in the image of the main character, Mamoru (a human boy).

From Chibi Manga: A story about an energetic girl and tendency boy!

Crown Prince Ayato, while presented as male, is a person with no specific sex. However, at the age of 16, Ayato makes a very important decision. Why does Ayato have the markings of angel wings on his back and what road will he lose when he falls in love? What will be the result of Ayato's decision?

Rita is a normal and optimistic girl, but convinced by her hardcore gamer friend, she delves into the world of MMORPG gaming for the first time.

The sequel to Waltz wa Shiroi Dress de.
You will see how the lives of Koto, Sajit and Masaomi go on.

The God of Destruction Magu Menueku has been summoned by the Chaos Cult. Humanity's last hope is the honorable Holy Knights! The battle to save mankind…took place hundreds of years ago… But now a girl out in the country named Ruru releases the legendary god of destruction who had been trapped in a magical jewel! Will the natto-eating, destruction beam-blasting Magu-chan fill the world with complete chaos? This heart-warming, destructive comedy series is ready to explode onto the scene!

It is a world where order is maintained by three great factions, the Church which bears the greatest authority, the Order of Clausius possessing influence on par with the Church, immense assets and military might, and lastly the Guild of Commerce, an association of merchants and artisans alike.
The alchemist Kusler who was captured and imprisoned because he committed the offense of trying to burn a saint's bones, sold his skills and talents to the Order of Clausius. Together with an old friend, Welland, they were then dispatched towards the town of Grubetti which was close to the front lines.
And then at a workshop in Grubetti which boasted advanced equipment due to being near the front lines, Kusler met the devout nun Urle Fenesis who had introduced herself as a "watchdog."