From The Zero Alliance:

At Seirei Academy, a series of mysterious demonic ceremonies have been taking place and the transfer student, Yuriya Yuuki is suspected by his classmates. One evening, from his dormitory window, Yuriya sees a girl wandering outside and follows her. Once outside, he encounters a book which allows him to summon the demon Belial, whom invites Yuriya to enter into a contract with him…

Border wars ravaged the water nation. In order to calm the war, the royal family was forced to send the king’s daughter amidst the fighting, but the storm continued… Meanwhile, there existed a struggle within the royalty, where fate hangs in the balance! The wheel of fate spins quietly….

Sakura Suzu is a rookie shoujo mangaka who doesn't seem to meet success. One day, her editor who has worked with her since her debut is transferred. The new editor in charge is a handsome guy who used to work in the seinen departement. It's love at first sight for Sakura but he doesn't think the same.

Aya's childhood friend Chika has always been attacked by girls. Aya resolves to protect Chika's virginity at all costs...

From Viz:

Rena Sakura is a high-school student with a secret: she's a professional mangaka. And although she's never been on a date, that doesn't stop her from drawing steamy shojo scenes for ChaMi magazine. But when the gorgeous Tomoya Okita finds out her secret, she finds herself asking him out to get some real-life experience in love!

Includes the following oneshots:

1. Magic Lesson (Magical Project) in v.1
A girl uses her magic to transform her dog into a human boy.

2. Bewildered Princess in v.2

From Midnight Scans:

Rin and Hiro are childhood friends. The truth about Hiro’s love that he can’t confess is…?

Note: Original language image is unavailable.

From Chinatown KM: When the mother of a particular girl disappeared, her father began to ignore her. Ten years later, she meets a pervert at a crowded bus stop. A mysterious boy saves her...but...what will happen next!?

Rin is always sending messages with her phone and doesn't speak to anyone. Even though she's like that, Taka got interested in her and keeps on following her. But why doesn't she want to look at him...? And who is this mysterious person with whom she always exchanges messages with...?

From: Winter Translations

My childhood friend who loved messing with me moved away 10 years ago but now he’s back. My everyday life is filled with sweet despair!

The Rose of Versailles focuses on Oscar François de Jarjayes, a girl raised as a man to become her father's successor as leader of the Palace Guards. A brilliant combatant with a strong sense of justice, Oscar is proud of the life she leads, but becomes torn between class loyalty and her desire to help the impoverished as revolution brews among the oppressed lower class. Also important to the story are her conflicting desires to live life as both a militant and a regular woman as well as her relationships with Marie Antoinette, Count Axel von Fersen, and servant and best friend André Grandier.

Licensed versions of this manga have been published in Italian, French, German and Spanish.

From Shoujo Crusade:
Ichino is a high school girl who absolutely hate guys due to the fact that her father betrayed them when she was young; stealing all the valuables that she & her mother possessed & disappearing without a trace. Since then she has vowed to become strong so she would not lose to any man. She has also longed for the day she could meet the lady from a fateful encounter in her childhood.

One day, she accidentally beat up a guy who she mistook as a pervert pestering her friend, Miyabi. She tries to apologize but ends up beating him up even more.... She developed a distaste for the guy and two of his friends as they bump into each other once again resulting in more misunderstandings. Ichino personally believed that if she came across the same person thrice that would be considered 'fate'...

Coincidentally, the start of her school begun with a surprise as she found out that all THREE of them turned out to be her new classmates !!

The series contains 2 volumes;

1) Vartrag Tale
Ralph can see angels and demons. When he was five years old he came across the winged demon Valafar and was completely charmed by him. He made a pact with the demon in order to make his wish, to live with Valafar, come true. Seven years must pass, and there are two conditions that must be met for the pact to be fulfilled. Can the older Ralph discard his ties to humanity and fulfill the pact...?

2) Vartrag Tale - Korumajou no Shitsuji
The story of Valafar's ever-faithful butler, Belta.

Chiyo meets a wealthy nobleman who seems to be the grim reaper.
A story about being able to save people who are destined to die.

From Chibi Manga:

She was always looking at him after school. Just seeing him was bringing her happiness. However a terrible future was waiting for her. But at that time she didn't know anything about it.

From CMX:

Madoka is a high school student who is recruited by Nabeshima ? the guy in the bunny suit ? to work for the GSG (Gokuraku So Gei, a transportation service to heaven). Nabeshima is just way too busy, and since Madoka seems to have the power to see lost souls, he's recruited to help lighten the workload. Madoka is given the job of transporting wandering souls to the afterlife ? on motorcycle! But many of the dead are reluctant to leave this world, feeling they haven't accomplished everything they should have in their lives. Madoka must assist the deceased in performing tasks that will help them finally feel closure and make them willing to leave everything behind for good.

Includes a side story called Sweet Medicine in vol. 4.

The "self bully" Ban has a normal enough life, and where divorced parents aren't that uncommon, her life becomes shadowed in mystery when her mother, Eun-Joo, suddenly brings their "distant relative" Jin-Whan home to live with them. Ban’s mother would always avoid the topic of her family, so who is this strange boy? Are they really relatives? What torturous secrets does her mother's past hold? And what do the sudden strange happens that follow in Jin-Whan's wake mean? Would a better question not be who is he, but what?

From CPM:
The Devil's Castle was a dark and somber place, until the good-hearted apprentice ASARELLA stumbled on it in a goodwill mission, against her master's wishes--the archmage ELIWHO. Things sour quickly, as Asarella was bound with a blood pact to the Devil, KAINEN. Little did she know, the mage harbors a secret love for her that will only complicate her training for the upcoming apocalyptic battle. This sets up the most unusual love triangle of all space and time.

Koino Tsumugi is a sixteen year old otaku who only has eyes for "Tokki" -- a 2D character in her favorite otome game! She has no interest in real boys... Then one day she's rescued by a guy who's the spitting image of Tokki...?!

When Yuna Lee's mother moves to Germany to pursue a music degree, she's left to stay with her father, a university professor, and her three older brothers, who are fiercely overprotective of her.

During her summer vacation, she visits her mother in Germany, where she falls off a cliff and is rescued by Rieno, an 18-year-old knight living in the land of Phantasma. Rieno makes a deal with Yuna: If he saves her life, she must come with him and become the Queen of Phantasma.

After agreeing, she goes back home, only to return to Germany some months later, and is whisked away to Phantasma by Rieno. Now, she must cope with being the Queen of Phantasma, while forgetting the world she came from.

Did you think Masca: The Tale of the Great Mage of Hessed was over? Masca: the Kings is the sequel of Masca, in which Asarella goes on a journey to save Kainen. However, the first two volumes focus quite a bit on the development between Rea and Rakin (Kainen's beautiful ex(?) and another demon king).