Seven women, one man, a suspenseful harem story!

During a class reunion, the school became an enclosed dimension without warning. Yelling and screaming brought no response. 26-year old unemployed Haruka Sato has to survive by cooperating with seven of his former classmates. Soon, the extreme conditions began to eat away at their sanity, and Haruka's hidden desires began to take hold.

The Arisaka sisters (Hatsune and Kazuki) and the Kagura siblings (Yuuji and Marie) lived next door when they were smaller. So close that they could climb onto each other's verandas from the 2nd floor. They would always play together until one day the Kagura siblings had to move.
It's been 10 years and the Kagura siblings are moving back! Yuuji's turned into a pervert and Marie isn't the crybaby she used to be?

Just like how everyone adored heroes in their childhood, a certain young man adored those powers hidden in shadows. After hiding his strength and living the mediocre life of a mob character by day while undergoing frenzied training by night, he finally reincarnates into a different world and gains ultimate power. The young man who is only playing at being a power in the shadows, his misunderstanding subordinates, and a giant organization in the shadows that gets trampled….. This is the story of a young boy who had adored powers in shadows possibly eventually reigning over the world of shadows in another world.

A man who was once called the world strongest agent ended up becoming a teacher after his retirement to train the new generation of agents. After many years of training his disciples, he is killed at the age of 60 by the ploy of a secret organization and was reincarnated in another world with all his past memories.

Though he was surprised by the magic and the strange species of that world, he adapted very fast to his condition as a newborn and took advantage of it. He acquired special magic and gained a massive amount of strength thanks to his tight discipline, in order to reach his goal: Resume his career as a teacher which he left halfway through in his previous life.

This is the story of a man, who, based on the memories and the experiences of his previous life, became a teacher who travels through the world with his students.

From Seven Seas Entertainment:
Monsters? They're real, and they want to date us! Three years ago, the world learned that harpies, centaurs, catgirls, and all manners of fabulous creatures are not merely fiction; they are flesh and blood?not to mention scale, feather, horn, and fang. Thanks to the "Cultural Exchange Between Species Act," these once-mythical creatures have assimilated into society, or at least, they're trying.
When a hapless human teenager named Kimihito Kuruzu is inducted as a "volunteer" into the government exchange program, his world is turned upside down. A snake-like lamia named Miia comes to live with him, and it is Kuruzu's job to take care of her and make sure she integrates into his everyday life. Unfortunately for Kuruzu, Miia is undeniably sexy, and the law against interspecies breeding is very strict. Even worse, when a ravishing centaur girl and a flirtatious harpy move in, what's a full-blooded teenage human with raging hormones to do?

The strongest and oldest dragon who had lived through eternity allowed himself to be killed by Hero. Just as he prepared for eternal sleep, he realized himself reborn as Dran, a villager in the frontier.

Working the field, hunting forest animal, and having a warm life has filled his heart with joy he never experienced in his whole dragon life.

One day, when he's patroling the forest near his village, he encountered a powerful demon army...

One day, school teachers come as freeloaders to the inn run by his parents!? Kazami Hiro, a high school boy, decides to take care of the inn and his future!? Under one roof, The forbidden harem romantic comedy begins!!

The story is about the forbidden romcom between 7 siblings.

Losing his memories, the curtains of the story of alternate world transfer of the MC rises. After the transfer his name changes to Kelvin. While steadily levelling, he adds new subordinates by mastering his skill. And by the time he noticed it, he had obtained overwhelming power. Where will our MC be heading off to?

This battle fantasy manga follows several heroines who protect people from the monsters that appear through a gate connecting to an alternate world known as the Mato (magic capital).

Otakura is a high school boy who's clearly an otaku, and Narumi is a high school gal. Normally, these two polar opposites would never cross paths, even at school. But by a strange coincidence, it turns out Otakura is able to use his inherently handy nature to help out Narumi with her own hobby-related requests, one after another?

One day 's lunch break, suddenly a male high school student Yuzo Ogata being transferred to another world of sword and magic together with four other friends.

According to the Princess of Space-Time Magician, a foreign world who summoned them, they want them to beat the Demon Lord as Heroes to save this world.
Suddenly I was surprised at four friends "Temple", but it was a relaxing expression ... ... where the princess told of a startling fact!
"`―― There should only be four braves though?"
"A man who was mistakenly summoned to a different world" What will be in store as to his fate?

Source: http://konomanga.jp/manga/taitei-cheat

That's right, let's become a monk!

Not knowing what to do with his worldly desires, Akagami Akemitsu aims to live a stoic life. However, the thick karmic blood flowing from him will not permit it!

"I want to break up with you."

In the winter of his first year of high school. Yuta Miyamoto, who tries to be "kind to others," was told by his girlfriend, Yumi Asakawa, that she had to break up with him. While he is still recovering from his broken heart, Akane Kurosaki, a junior, calls him "unable to get a girlfriend," and Ruriri, his favorite maid, calls him "like a slave". Yuta, fed up with the situation, declares his intention to break off relations with all three, but the reaction is not what he expected!

A man is stabbed by a robber on the run after pushing his coworker and his coworker's new fiance out of the way. As he lays dying, bleeding on the ground, he hears a voice. This voice is strange and interprets his dying regret of being a virgin by giving him the [Great Sage] unique skill! Is he being made fun of?

The mom characters who appear in the game MamaFan are all unfortunate sub-heroines who always get bad ending routes. “Why... Why do such cute moms have to die?!”. Even though the protagonist tried very hard to request a route where they get saved, all of his efforts were in vain, making him spend his days in frustration. Then on a certain day, he suddenly gets reincarnated into the world of MamaFan... However, he gets reincarnated as a villainous aristocrat who's got nothing but the worst routes. This guy, who's crazy about mom characters — his fulfilling days of saving his beloved mom characters and his journey to create his harem full of plump women are about to begin!

Kazuma Suzuki was just your average high schooler—until his childhood friend, Rua Takayashiki, a beautiful, sharp-tongued girl who also happened to be the granddaughter of the school chairman and the nation’s top idol, cut all ties with him using a line straight out of a drama.

Forced into submission for years as her so-called childhood friend, Kazuma decides it’s finally time for his first-ever rebellion. He’s done playing lapdog. This time, he’s taking back his freedom—and aiming for a normal school life.

Escaping a powerful beauty like her is easier said than done...

A MAN purchases three little slaves and begins to groom them into perfect girls for his harem. You will never have a gaggle of lolis with horns in your life. ;_;

My childhood friend, Magary, was chosen to be the saint. From here on out, she'll have to maintain a smile at all times while at the royal capital and take lessons in etiquette and dance. She'll be living in an excruciatingly stifling world. Having been together since birth, there was naturally one thought in my mind.

While feeling a little bit of loneliness… I pushed my childhood friend (who was trying to escape with all her might with her arms still bound) towards the knight that came to pick her up.

"Alistaaaaaaaaaaaaar!!"

I feel as if there was some deep resentment in her voice, but that's probably just my imagination.

As her last act of futile resistance, she had me see her off to the royal capital… but, that ended without any problems.

"Now that that's over with, I'll be heading home. Good luck ^^"

I turned my back towards my childhood friend who looked me with deep resentment in her eyes. While I was making my way home… I had to turn around as I was chased by goblins.

"Noooooooo!! Someone, helpppppppp!!"

This is the misunderstood heroic tale of a scumbag hero and scumbag saint mutually getting in each other's way as they attempt to pursue happiness. [Source: MU]

Mankichi Akatsuki works for a publicly traded IT company, and his work and relationships are going great, but there's one thing that sets him apart: the rest of his family (mother, older sister, and two younger sisters) are all unemployed. Though they're all motivated, for some reason they can't find work. On top of that, his childhood friend Minayo loses her home and comes to live with them... His goal is for everyone to become independent! And to wed his childhood friend!!

(Source: Houbunsha, translated)