From MangaHelpers:

Tokitou Haruto, during his first year in middle school, lost all of his friends because of a Science Fiction novel he had read. He was so engrossed in the novel that he started calling men “Kei” and the ladies “Florlain,” which had spread throughout the school at that time. Unable to cope with the sudden exclusion, Haruto continued to isolate himself throughout his middle school years.

Now, as a first year high schooler, Haruto faces a new “problem.” One casual day at school, the classroom becomes perfectly still. Time has stopped again. Having experienced this time-stop multiple times, Haruto begins to wonder if this time-stop is actually a dream. But all of this doubt stops when he meets Sakazaki Kuon, someone else who knows and experiences the time-stop. She is also part of a team of members who defends the world from monsters who attack the world using this time-stop dimension: Kohakjal. What relation does Haruto have with a group who fends off time-stop monsters? Could it be that he's the only who can truly fight them off? [Midori-Mori]

Ataru Natsumeda is withdrawn in his first year in high school, unable to rise above mediocrity. His parents are on bad terms with each other, so Ataru leads a lonely, gloomy life. On top of all that, his sister Tsukimi is endowed with both wit and beauty, which causes Ataru to have a severe inferiority complex from living in her shadow.

Ataru gets bullied repeatedly by delinquents who are after his beautiful sister. One day, his classmate Nirasaki witnesses this, and asks Ataru, “Why didn’t you just tell them to piss off and die?” Soon after, she passes the mysterious “wishing stone” to Ataru with a kiss, as if she’s restraining him from asking any further questions. Rumor has it that this “wishing stone” can make any wish come true!

Having obtained this stone, Ataru wishes for the delinquents to die! And within a moment, the three delinquents die bizarre deaths!! What is this “wishing stone” …? Who is Nirasaki…? And what will be the fate of Ataru Natsumeda, who has set foot into this horrible world…?!

Based on the early Japanese folktale Taketori Monogatari, this is a story about a Princess exiled from the moon and her story on Earth. On the dark side of the moon exists a highly advanced civilization divided into two clans, the Takenouchi family and the Umenouchi family. Takenouchi Kaguya is the daughter of Takenouchi Fumiya, the acting queen of the clan. Kaguya is the next in line for the position for queen but she refuses to be obedient and wants to enjoy life. The bratty Kaguya despises her mother and the people around her for being so strict and often wishes she was never born as a princess. Queen Fumiya has been severely ill for many years now, but has kept it from her daughter in order to protect her but her condition has worsened. The Umenouchi family takes this opportunity to start a coup and takes over the government. Knowing that she is not able to ensure her daughter’s safety on the moon, Fumiya sends Kaguya to Earth with the powerful katana that symbolizes her ownership of the moon. Without the sword, the Umenouchi family cannot usurp control of the moon. Kaguya is forced to mature and become stronger in order to take back what was once her mother’s!

Paradise Gakuen's annual competition Miss Paradise is coming soon! But a major incident occured: one of the girls hoped to be a contestant, Chihiro, had her precious part seen by a boy! Chihiro who holds a principle that she won't let anyone other than her husband to see her naked, wants to become Shiba's wife. Because the latter didn't believe her intention, she decides to prove it, by entering the annual competition!

From MangaHelpers:

Second baseman Kaizu Chiaki is a normal senior high schooler who aims to reach the Koshien with his teammates and worries about his future career. One day, a new teacher arrives at his school. Her name is Takamine Touko. Crossing the boundaries between teacher and student, Chiaki and Touko find themselves gradually attracted to each other. [DrCoke]

Nakazawa Miyu is the 5th grade daughter of a bookstore owner. Unfortunately, it's an adult bookstore! Despite her desire for normalcy, she reluctantly helps out the store, much to her regret.

This manga is about robbers, thieves and bad people and how they can't do anything because the good people are even worse than them. Who would've thought?

The special focus on the meeting of Shishio Makoto and and his significant other, Yumi Komagata.
The manga also details how Shishio formed the Juppongatana, his organization of warriors and assassins that he recruits in an attempt to overthrow the Japanese government in the original Rurouni Kenshin manga.

Two prisoners managed to escape after the police truck carrying them crashed on the highway. One of them , Mr Sawazaki is a gangster who has sent 10 different bosses to hospital. The other called "You" - our protagonist - is a con artist whose cheating profile has piled up to approximately 100 billion yen. Accidentally, "You" then becomes the new teacher for the nearby high school, under the new name Takeda Shindo, and according to a deal of "Hammer Session" with the headmaster.

Are you single? Are you an otaku? Would you like to buy a "wife"? Do you fantasize about eating, having fun, shopping, and sleeping with her? Can you promise to take responsibility and love her for a lifetime? Would you use your life to pay for a contract? A fantasy that belongs only to you; a maid that belongs only to you.

One-shot about a quiet young man minding the family clock shop, and his friend from elementary school, a girl with "idiot strength". She seeks him out for the first time in years, asking "Fix my watch!"

Long ago a magical cat disguised as a human woman fell in love with a human man. It is said that during their time together they even had children. They say that afterwards, the magical cat dwelt happily as a human, that she ascended to the heavens and became a cat-god, and is even now watching over the world of cats and men.

Of those descendants, the cats of Cat Forest Town say that they have mysterious powers. The townsfolk care for the cats as their guardian dieties, and the cats, too, have become attached to the humans.

Hiromu is untalented in sports and has failed in many teams but has found talent in ping pong.

From ADV Manga:

On the planet Aqua, a world once known as Mars, Mizunashi Akari has just made her home in the town of Neo-VENEZIA, a futuristic imitation of the ancient city of Venice. The technology of "Man Home" (formerly Earth) has not entirely reached this planet, and Akari is alone, having no contact with family or friends. Nonetheless, the town, with its charming labyrinths of rivers and canals, becomes Akari's new infatuation, along with the dream of becoming a full-fledged gondolier. Reverting to a more "primitive" lifestyle and pursuing a new trade, the character of Akari becomes both adventurous and heartwarming all at once.

Adventure of 3 teen bounty hunters. Sora, Brogy and Lisa!facebook.com/bountyhunterzcomic New chapters every 2 weeks

Adapted from a visual novel. A girl who can capture the memory of whoever she's in front of by just looking into their eyes.
A childhood friend who lives with two red-smeared eeirie dolls, convinced they are her parents.
A sickly little sister who manipulates persons by just smiling.

The protagonist meets these girls who lack something, and gets involved in strange events.
This slowly gnaws at his heart, like tracing with a fingertip the reminiscences of a distant day.

A sad, and somewhat nostalgic, story about memories.

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From MangaHelpers:

Shishikura Shigure is an ordinary high-school student, who is into gal games, figures, and late night anime. He tends to be pretty oblivious of most of his actual surroundings, particularly at school. Since his parents have gone overseas for work, his childhood friend Koyomi has taken charge of caring for him. One Wednesday, one of Koyomi's friends is missing, and she seems overly concerned. She explains to Shigure that one month ago, a student at their school threw herself in front of a train. On every Wednesday since then, a girl at their school has killed herself. She warns him not to get involved, but Shigure decides to look for Koyomi's friend.

Shigure ends up at the scene of the crime, where he sees a darkly mysterious girl who claims she can peek into people's memories. Shigure learns later that she is the student council president, but why was she so cavalier about her classmate's death? Could she be involved, and will Shigure be able to stop this string of supposed suicides? [tethysdust]

The selection of Roland as the Commander of the Royal Family's Guard was a dangerous bet that could well undermine the survival of the empire. Around them, a mixture of mystery and speculation spirals around Roland that leads him to his fate.

An ordinary, bored, bullied high-school boy. A mysterious, frail and cute transfer student who just happens to be a feared delinquent and studies the Chupacabra. They meet and start going out together. What can go wrong?

More collections of chilling short stories dealing with urban legends, ghosts and superstitions. Unlike the prequel, Fuan no Tane+ provides more continuity between chapters, and a few even have conclusions of a sort.

From MangaHelpers:

There is a hidden island that is a mecca for martial artists. There are different reasons people go there--because they want to become amazing at their art, or simply because they come from a family known for martial arts and they are sent there by their parents. In any case, new arrivals sign a contract that they can't leave for 10 years, and that contract is strictly enforced. Within the complex, there is a forbidden area...

Ro is a new arrival, and he was hoping to hone his skills. However, it seems to him that he's gaining nothing, and is just being required to drag himself down to the level of his inferior peers. One day, he opens the door in the forbidden area, and finds a boy who had been trapped there for ten years. The boy remembers little of his life before, and Ro names him "Kid." Kid is determined to leave the complex and search for his father. Maybe if Kid can get help from Ro and other new friends he makes, such as a sad, bullied young girl named Mugi, he will be able to begin his search! [tethysdust]