From Hochuuami:

Prince Ashide decides to agree on a wife, but too bad for him a lone deserter of the country of Ishugal shows up instead to claim the title of Princess.

extra story: Beloved Affair
The older son of feudal lord of Crimson Country, Nagi, loves the surly/arrogant spy, Kari. Kari who always refuses Nagi's courtship happens to know that Nagi loved the lover of his father who had same red eye like Kari. Kari feels anger for Nagi who loves him as substitute...

Monster weaves the riveting story of brilliant Dr. Kenzo Tenma, a famous surgeon with a promising career at a leading hospital. Tenma risks his reputation and promising career to save the life of a critically wounded young boy. Unbeknownst to him, this child is destined for a terrible fate.

A string of strange and mysterious murders begin to occur soon afterward, ones that professionally benefit Dr. Tenma, and he emerges as the primary suspect. Conspiracies, serial murders, and a scathing depiction of the underbelly of hospital politics are all masterfully woven together in this compelling manga thriller.

Note: Won the 46th Shogakukan Manga Award in the general category.

beginnning with the Bloody Valentine War between Earth and the colonies,On one side is the Earth Alliance, and on the opposite is the space colonies that form ZAFT (Zodiac Alliance of Freedom Treaty). Mankind is divided over human genetic engineering, with normal humans known as "Naturals" and the genetically altered humans known as "Coordinators".While ZAFT has a head start on mobile suit design, the Earth Alliance quickly catches up with its five prototype Gundams. With ZAFT having stolen four of the prototypes, young Coordinator Kira Yamato pilots the GAT-X105 Strike Gundam and is forced to fight his old friend Athrun Zala. Little do they know that there exist sinister forces working to bring about events that go far beyond their worst nightmares. -Taken From Wikipedia

The setting is Lillian Academy, a private Catholic all-girls school where the student council is known as the Yamayurikai (Mountain Lily Council) and younger students are taken under the wing of older students through a system known as the "soeur system" ("soeur" is French for "sister"). The main character, Yumi, who is basically a nobody, suddenly finds herself interacting with the members of the Yamayurikai and their soeurs, most notably her crush, the talented, beautiful, and withdrawn Sachiko...

Iori is a timid, feminine boy. Masaru is an aggressive boy who leads the other boys in bullying Iori. One day, they encounter a pair of strange extraterrestrial bunnies who turn them into magical girls in order to fight aliens that are invading their town.

In the Kekkon Kirai no Sankyoudai series(結婚嫌いの三兄弟; The Three Marriage-Hating Brothers), also called the "Billion-Dollar Braddocks" series:

1) Onzoushi no Yuuutsu (御曹子の憂鬱; The C.E.O.'s Unplanned Proposal):
When Adam, the oldest son of the wealthy Braddock family, asks Katie to be his party planner, she is taken aback. Doesn't he know that she's just a waitress? Adam's zeal eventually wins her over and she agrees to the job despite the misunderstanding. Katie is surprised to see Adam's gentler side during their time together, but still, with his cold, businesslike nature, it can't end well…or can it?

2) Koi wa Butoukai de (恋は舞踏会で; The Playboy's Office Romance):
The career-driven Lara can't believe that her new boss is the spoiled playboy son of the wealthy Braddock family. As a professional, she cannot accept the idea of someone like him running the company, so she marches into his office with her letter of resignation in hand. But Bryce pleads with her to stay, and somehow Lara can't argue with the sexy glimmer in his eyes.

3) Lady e no Kaidan (レディへの階段; The Blacksheep's Arranged Marriage):
Thea is the ugly duckling of high society. Shy by nature, Thea has never had a chance to blossom from under her grandmother's thumb. Thea has admired Peter Braddock for years, and agrees to let him escort her to a ball one night, but the two of them get soaked in a sudden downpour on the way home. She lets him in to change and dry off, but when her grandmother sees the two of them undressed in her room, she jumps to conclusions and sets in motion a huge scandal that will shake both of their families to the core!

English publication via Renta!, part 2, part 3

From Aerandria Scans:

During the time when the world is full of barren lands and big ships sail out to the vast oceans, a very rare type of sub-human--mermaid--was born. Normally, they have white hair, but only in water does the color change. Among the aristocrats, they are traded for large sums of money. Hisui is a merman with scarlet hair, and he's kept by a lord. However, as he's stolen away by the pirate Ikuta and gains freedom, they start their journey together!

Strawberry Marshmallow follows the life of Nobue Ito, her younger sister Chika, and her friends Miu and Matsuri. The basic premise of each episode can be summed up as "cute girls do cute things in cute ways," be it trying to quit smoking, going outside to play, sleep over, etc.

Himeno's chest hurts if any boy touches her because her heart is a diamond. However, when she was young, she befriended two boys--gentle Mamoru and blunt Keigo--who could touch her without harming her. Without knowing about her diamond, both Mamoru and Keigo promised to protect Himeno. When some people threaten to take Himeno's heart, who else will protect her but her knights?

Betrayed by the ones he cherished most, and after graduating from high school with a series of heart-breaks; Black left his home and lived away with a friend of his dad’s. In the greyscale life he lived, he longed for nothing but the end of his life, until a a person from the past crashes out of nowhere to re-add the contrast Black needs.

From Nekohana:

It all starts when Tomoe's hair gets caught in Kouga's button. As if by a red string of fate, they're tied together. Through a twist of that fate, Tomoe is forced to work in a house of prostitution lead by the yakuza, and who might be one of the yakuza heads, but Kouga.
Funny and dramatic, but more innocent than you think.

Good Ending follows the main character Utsumi's interactions with Kurokawa Yuki, a member of the school tennis team, in order for Utsumi to confess his feelings to the captain of the tennis team.
It is implied that the title of the manga is derived from the "good endings" that are achieved in visual novels.

Story 1. Boy Next Door
Takeshi is straight until he sees Kazuya lying naked on his friend's couch. After their intimate encounter, can they find a way to make a relationship work and manage to survive on their unusual part time job?

Story 2. One Heart
A story about a part-time, student worker and his ex-salaryman boss. When his boss's company is in danger of going bankrupt, how will the part-timer convince his ex-salaryman to take a loan from him?

Story 3. Otoshimono
An odd encounter between two strangers results in tales of violence of questionable validity--and of course sex. But is this just a one night stand?

Story 4. Long Way Home
Katou has money problems, loans and he hasn’t paid his rent for 5 months now. When his realtor Yui suggest that, if Katou does a job for him, he will give him 3 more weeks to pay the rent (before kicking him out or worse), Katou happily agrees… (Yui appears also in Night Walk)

In the wilderness of Hokkaido, the Ainu people of Japan live in harmony with nature. Kotan Nakamura is a young Ainu boy living peacefully until he meets a tiger one day. This tiger, Dan, has escaped from a train that was carrying him to a zoo. Together, they discover mysterious ruins hidden underneath the ground.
Within the ruins, Kotan and Dan discover an old man named Upopo living there. He tells the boy and the tiger about three keys to a fantastic treasure. As it so happens, the evil Sekkoku Kou is also searching for the treasure and shoots Upopo. Before he dies, Upopo gives one of the keys to Kotan.
Now, Kotan and Dan find themselves involved in an ugly battle as numerous villains track them down to try to get the three keys so they can claim the treasure.

Tachibana Tsukumo, a girl who cannot feel pain. Yao, an immortal boy whose only wish is to die. What will happen when these two meet...?

“Ah~ I want to fall in love!” wishes the handsome Sugisaki Mitsuru, who dreams of sleeping with the one he loves. And as fate would have it, Sorachi Ryuuji, a rather cute and very athletic senior, happens to materialize in answer to his prayer. The only problem is, Ryuuji is a late-bloomer and rather slow on realizing Mitsuru’s feelings for him, thus starts the angst story of pure love…

+ two extras

Side Story: Abunai Kurai Aishiteru
Kawashima Makoto knew being in love with his student would only lead to trouble, so he hid his feelings. But when Kaname confessed to him, he couldn't hold back. Now Kaname's failing grades make Makoto decide to cut back on their relationship, but rebellious Kaname doesn't take orders very well...

Compilation of 3 short stories:

1) Wangan Jungle

2) Pineapple 3

3) Jungle Box

Volume 1
1-3) The Rumored Couple
Aoyama and Akabane, the president and vice president of the student council, are such a good match that there're rumors around that they're an item. Though both of them were supposed to be straight, everything gets complicated when Aoyama suddenly kisses Akabane saying it is an "experiment". As the experiment escalates, their hearts begin to flutter and their everyday life is turned upside down. If this goes on the rumour'll prove to be true... but is it really okay if things turn out this way?!

4) A Drug Against Unrequited Love
Every evening after work Sawano comes to shop in the drug store where Takimoto works. When Takimoto teases Sawano about buying energy drinks, hinting that Sawano might be needing energy during the night; Sawano blurts out that his love is unrequited. Who is the one Sawano loves?

5) Hanamaru Lunch
Everyday Hideki receives a lunch box from his childhood friend Shuntarou. Shuntarou wants to improve his cooking skills; but Hideki secretly wishes that the lunch boxes would be filled with Shuntarou's love.

6) The First Walk
The wealthy but clumsy Narumi is the master of his house since his parents passed away. He has a secret crush on his strict but gentle body guard Sakurai. When Sakurai's birthday is coming up he goes to shop for a present; at the same time the surveillance system set up to protect him breaks down.

7) The First Assistance
More about Narumi and Sakurai from The First Walk.

Volume 2
1-5) The Rumored Couple
The story of Aoyama and Akabane continued.

6) Selfish Recipe

7) The Father's Diary

8) The Secretary's Diary

Yamada's parents have gone abroad. Worried about him staying alone, they hired a maid to look after him. The problem is that the maid seems to be a delinquent who takes her job very seriously. Nothing will stay the same for Yamada anymore.