From Viz:
Deep in the heart of 19th Century London, a young nobleman named Cain walks the shadowy cobblestone streets of the aristocratic society in which he was born. Forced to become an Earl upon the untimely death of his father, Cain assumes the role of head of the Hargreaves, a noble family with a dark past. With Riff, his faithful manservant, and Mary Weather, his 10-year-old adopted sister, Cain investigates the mysterious crimes that seem to follow him wherever he goes.

From Mangabox: Jou, a young man, and Ren, a hunter, are traveling through the sea of sand known as the Dry Aqua. The world has changed for good ever since the "Great Collapse." Humanity has built a new civilization using magic tools known as Maki. Maki, the miraculous tools in which living magical power is sealed! At the bequest of powerful Maki users, their destiny itself can be changed. And now, struggling through this strangely changed world, powerful Maki users are after Jou and Ren! Powers clash! Prophecies cross one another! It's a fantasy adventure traveling over a destroyed world!!

Genghis Khan was the greatest hero in human history. This story illustrates the miraculous events in the breathtakingly vibrant life of this man who tore across the steppes, awash in turmoil and war, as the ruler of his people! This is an authentic historical novel depicting Genghis Khan's sweeping military rule from his childhood onward!

The son of a genius magician, Yoichi Takato has been something of a polymath ever since high school. However, his days are marked by boredom and an inability to open his heart to others. When he happens to join the magic club, he meets with people he thinks he may one day be able to call friends. But then, the curtain rises on a terrifying "murder magic show".

A spin-off story with Hajime Kindaichi’s nemesis from Kindaichi Case Files: “The hellish puppet master,” Yoichi Takato.

From Intercross & Shoujo Crusade:
Yuzu has always been a tomboy so she is worried that other girls will make fun of her underwear during the class trip. Without a second thought she asks her male friend, Ken, to help her chose better lingerie. However, right after this, Yuzu can't understand why she can't act like usual around him anymore.

From Intercross:

"When I'm in the water, I'm not sure whether I'm crying or not."

Rio belongs to the swimming club and is an excellent swimmer. She has even been told by the club adviser to help out Yokoyama, a member who can't swim, because she's good at teaching others how to swim. She is also a close friend to Jun, another swimming club member. What will happen to these three?

Life was peaceful and quiet in the small port village of Miyakono, located in Japan's Kyoto prefecture. Quiet, that is, until the townsfolk were shocked by a rash of bizarre murders. Rumors abounded about the nature of the killer, but one thing was clear: the bodies were mangled by what appeared to be a set of very large teeth.
When a trio of students investigate the temple where the most recent victims were slain, a young man named Yousuke stumbles into and breaks a small shrine, from which emerges a phoenix-like creature made of light that flies towards him and disappears. When he realizes that none of his friends saw the light, Yousuke tries to put it out of his mind... until he is later attacked by the demonic beast that is responsible for the recent deaths. It is then that the phoenix spirit re-appears, offering Yousuke the power to defeat the inhuman beast that is stalking him.
A power, however, that will come at a great cost.

From AQUA Scans:

Rozariol, who was looking for a master to serve, meets the daughter of the Dewberry household, Snowbell, and becomes her servant. “You must not tell lies.” This is the only rule that the servants must follow. However, Snowbell often tests her servants on that condition, thus the cruel “judgement” begins.

From Shogakukan: In the year 2020, anti-government student movements are raging again. Having encountered a two-wheeled robot named "Rideback" modeled on a human being, Rin Ogata rides on the "Tetsuma", and the world's destiny begins to change!!

In the year 1863, a time fraught with violent social upheaval, samurai of all walks of life flock to Kyoto in the hope of joining the Mibu-Roshi--a band of warriors united around their undying loyalty to the Shogunate system. In time, this group would become one of the greatest (and most famous) movements in Japanese history... the Shinsengumi!

In 2003 Kaze Hikaru won the Shogakukan Manga Award for shoujo.

Web manga about a misunderstood, intimidating koala in a school for humans and anthopomorphic creatures alike.

Aesop's fable, "The Ant and the Grasshopper" is reinvented in this short manga.

Satoshi is a fragile research student who immerses himself so much in his research, that he often forgets to eat and sleep. He has a pet-master relationship with Izumi, his junior at the same lab, a relation which they themselves and people around them are aware of. Izumi’s supposed to limit himself in taking care of Satoshi, but after he learns that he was attacked by a man, his feelings towards Satoshi started to change. These feelings are possessiveness and a desire to monopolize or…?

From MangaHelpers:

There's a new transfer student in school named Midori, and she is very cold and set apart from everyone. For some reason, though, everyone seems interested in her. One day, Ao witnesses proof that she is a supernatural being, and confirms with her that she is actually a god. He carelessly asks a wish of her, like people have been sending to the popular "God mail" address that's suddenly been going around school, and she grants his wish. Unfortunately, the cost is high. She kills him-- only to bring him back as a shinigami (death god).

Now, Midori informs him that his job is to show up where people are going to kill themselves and die in their place. Ao feels the pain of each death, though, so it's not something he wants to repeat over and over. For that matter, ending a person's single suicide attempt doesn't necessarily mean that he has done anything about the reasons they were willing to take that step. Will Ao find a way to cope with his painful new life? [tethysdust]

Day after day, honor student Hwang Dong Wook gets called out by the bullies in his class to serve as their punching bag. Day after day, the last-ranked student Choi Yool is shunned by her classmates because of her beauty and her grades. As it happens, the sullen boy and the carefree girl sit next to each other in class. When the top student is asked to lure her into the bullies dirty schemes, their lives take an unexpected turn... From mangaupdates

A young man who enters a lost world where all anyone knows is fighting! Starting at level 1, He works his way up to become a great Player Killer in "The Wilderness".. A place where anything goes and warriors battle for loot, glory or simply just to kill! In The Wilderness , You'll encounter strong and experienced Swordsmen, Archers, Mages and many more classes of warrior! So make sure you train on plenty of Goblins before entering and level up!

From Bamboo Garden
Five individuals, 24 years old. Their first memory starts in 1994, and it all revolves around a mysterious crime that occurred... Will they be able to escape the dangers?

From Girls' Generation Scanlations:

After having been apart from his older brother for 10 years, Ninomiya Michiru, has finally returned to Japan to live with his brother, Shiou. But what surprises lies in store for him after all these years? What secrets were buried in his memories after all these years that he tried to forget?

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Series Chronological Order [Pairing # : Volume #]
Nekoka Danshi no Shitsukekata [1:1-5]
Nekoka Kareshi no Ayashikata [2:1]
Ikezu Kareshi no Otoshikata [3:1]
Kuroneko Kareshi no Asobikata [4:1]
Kuroneko Kareshi no Amaekata [4:2]
Kuroneko Kareshi no Aishikata [4:3-4]
Fukigen Kareshi no Nadamekata [5:1]
Kuroneko Kareshi no Afurekata [4:5-7]
Fukigen Kareshi no Saraikata [5:2]

Weekend Betsuender:

A collection of 5 short stories:

1. Natsu no Kakera
When Miyuki goes off to the countryside to visit her grandfather in the hospital, she accidentally enters Madoka’s room instead. Although she finds him rude at first, they end up seeing each other every day and get closer. But, Miyuki only has a limited amount of time in the countryside. As the summer passes, how will things turn out for them?

2. Yuki no Kakera
Aya usually has the library to herself after school - that is, until she witnesses an incident that leads to her discovery of Tono’s feelings for her fellow librarian, Konno. The three end up spending time together, and Aya finds it odd that she can’t stop watching them. As winter goes on, the snow falls and builds up like the fragments of Tono’s emotions - fragments that slowly find their way into Aya’s heart.

3. Koi no Kakera
What was initially sheer admiration for the club president, Kondo, spurred Konno into joining the Home Economics Club. Little did she know that these feelings of admiration would eventually grow into something bigger and she decides to knit him a scarf as an expression for her feelings. However, life is hard when the target of her affections is the harshest handicraft critic around. Would a scarf knitted with the her fragments of her emotions be enough to convey her feelings?

4. Harumichi Soushi

5. Akiiro Kimiiro
Kanako had always dreamed of falling in love; and when she finally does, things don’t exactly go according to plan. Ihara is cold, aloof and rude – but despite that, she is relentless and refuses to give up. Vibrantly coloured by all the moments they had together, it was the autumn their lives changed forever.

From BangAQUA & Yaoi Is Life:

"Mitsuru and I, we're Romeo and Juliet." High school students, Ryousuke and Mitsuru are lovers since childhood. But their fathers are with daggers drawn. They really don't want to be separated...With this mind, the decision to elope...?! Besides the main title work, this book also contains the love of a popular idol x childhood friend, and the timid love of the one carrying out someone else's love letters ♥ The sparkling high school loves, a short compilation gem!