No one knows that Aira Hernandez is a secret agent. That's not all, she is also hiding her feelings for her boardmate, Lory. What will happen as she delves further in a murder case related to Lory's could-be boyfriend?

A young boy inherits an old house, but it's not without a previous tenant.

SIN takes place in a post apocalyptic future derived from a universe very similar to ours. The inevitable lack of resources to sustain humanity on Earth had split the world into two warring factions, the United Nations (U.N.) and the New Earth's Alliance. (N.E.A.). After years of unnecessary conflict and technological advancement in weaponry, both sides eagerly stumbled into peace to avoid extinction. Now under the rule of the newly formed United Earth's Federation (U.E.F.) space has become the last hope for the human race. However, with resources more scarce than ever the clock is ticking. How do we decide who's privileged to live and who's not? What happens to those of us left behind? A world now loosely controlled by a single totalitarian government, overrun by gangs, private military groups, freedom fighters, and death; Life seems to provide no more than a fruitless future. Regardless, there are still those of us that fight, we fight each other, we fight the system, we fight for our loved ones... whatever the reason, we battle for answers.

From NOIR:

Lena Ha is a beautiful and a tough girl who is the captain of the kendo team. She meets Hye-Min Kang, the son of the president of a big company in Korea, and the two seem to fall in love at first sight.

But when Lena learns that she and Hye-Min are half-siblings, she runs away and falls into a strange body of water. When Lena wakes up, she finds herself in a strange kingdom...and learns that she may be its only hope. Now Lena, disguised as Ley, is ready for many adventures.

From AQUA Scans:

The people that are infected with the maka's sprout, are fated to feed the flower until it blooms, which ends their lives.
The maka -humanoid demons-, carrying its own sprout, are chased by Satsuki, and the maka known as Blue Rose greets Satsuki as a "Hero". What will this encounter bring...?

Whoever wins... we lose.

By Azula
An 8 year old child, along with his brother, managed to escape from the disasters of an army's merciless killings! His own past, how much could people possibly know? His own heart, who could possibly understand? These questions was the "revenge-mindset" that has lingered the brothers through extensive training to become insanely powerful in the martial-arts. Now, this same 8 year old child has grown into an adult and is now a King! He is the Leader of the Southern Barbarian Sect. He is known as the southern barbarian, SANDSTORM..!!

Two young men vow to transform the destiny of Japan, by any means. As children, they survived the horrors of the Cambodian killing fields together. Now, can they topple the leaders of both the Japanese Parliament and the yakuza crime syndicate?

Although cold and calculating when need be, Hojo and Asami exemplify the traits their colleagues lack: loyalty to friends, compassion for the downtrodden...and an irresistible way with women.

Deputy Police Chief Ishihara sets out to expose their ingenious machinations, but instead falls helplessly in love with Hojo...

Note:
While this was originally 12 volumes in Japanese, when translated into English by Viz it was printed three ways: first in comic book form (each issue had 2 chapters), second in a 5-part 14-vol compilation of the comic books, and finally in a 9 volume manga series. Because the translation is so early, the books were flipped to English left-to-right orientation.

The nine English volumes correspond to these compilation parts, floppy issues, and original chapters:

V1: Part 1, Issues 1-4, Chapters 01-12
V2: Part 1, Issues 5-9, Chapters 13-27
V3: Part 2, Issues 1-5, Chapters 01-13
V4: Part 2, Issues 5-9, Chapters 14-26
V5: Part 3, Issues 1-7, Chapters 01-13
V6: Part 3, Issues 7-8, Chapters 14-16; Part 4, Issues 1-5, Chapters 01-09
V7: Part 4, Issues 5-7, Chapters 10-14; Part 5, Issues 1-3, Chapters 01-05
V8: Part 5, Issues 3-8, Chapters 06-15
V9: Part 5, Issues 8-13, Chapters 16-22

Mugen is a rough-around-the-edges mercenary with a killer technique and nothing left to lose. Jin is a disciplined samurai who's as deadly as he is reserved. Fuu is a young waitress with a good heart and a resourcefulness that emerges when you least expect it. These three unlikely companions are about to begin a journey that will change all of their lives.
It's a dangerous quest for a mysterious samurai that will see our squabbling group of heroes get into and out of trouble more times than they can count (which admittedly, isn't very high). From the cynical gentility of the nobles to the backstabbing of the Japanese underworld, Mugen, Jin and Fuu will face threats from without and within as they hurl insults and throwing stars alike. Ancient Japan is about to get a lethal dose of street justice -- Champloo style. And it will never be the same.

Toshiko Momojiri - an ordinary kind of girl - falls in love with Kuroo Samehada, a gangster who is on the run after stealing the mob's loot. Toshiko, too, is on the run from a weird uncle. This is the story of two fugitives who meet and fall in love amid violence and gunfire.

1) Bi no Isu (The Coercion Chair)
Kabu and Nirasawa have a troubled relationship, to say the least. Harsh yakuza lifestyle, torture, and violent sex are everyday occurrences for the volatile couple.

2-3) Anya no Tsubute
Sequel to Bi no Isu

4) Tokage to Choutsugai
Emiri is impotent, thanks to his trauma of being molested by his childhood friend, Fuyu. Years later, Emiri is finally seeking treatment for his condition, but why is Fuyu wearing that white coat?! And why is the nurse's skirt so short?

5) Seiritsu Shinai Asa (The Morning That Will Never Happen)
What will happen years later when senpai and kouhai meet again? Is loving someone that frightening?

The series appears to be a sequel to the earlier SD Gundam Musha Maruden. Official relations were formed between Earth and the land of Ark. At an inter-racial school attended by humans and Mobile Citizens, young Ryuunosuke befriends fellow student Kokuryu. Life at the school can sometimes be fierce, with student gangs seeking to disrupt the harmony. But in the face of this, Kokuryu reveals a powerful ability- although he normally looks like a little kid, he can transform into the maturer samurai warrior Kokuryu Gundam. The series initially involves his battles against similar robotic creatures along with Gundam friends such as the bishōnen Hakuou Gundam and good natured/rough and ready Sekijishi Gundam. Eventually a mysterious group emerges, forcing Kokuryu and company to leave simple schoolyard scraps behind and engage in life or death combat. The general merchandising gimmick for this series involves the Gundam's being able to combine. This is similar to the gimmick for the series Transformers: Energon

Midori is a high-school-aged lesbian who has just been rejected, driving away one of her few friends. In the world right now, there are creatures called "Extraneous" that appear out of nowhere, kill people, and disappear again. No one remembers when they started appearing, but the chance of being killed by one is about the same as the chance of dying in a car accident. Midori's mother was killed by one a year ago, and not only is her father rarely around, he's also deeply in debt. She gets attacked by an Extraneous on her way home, but is saved by a mysterious girl who claims that she's a god. Midori names her Hitsuji (sheep) because of her horns, and takes the girl in. They start a website, Hitsujiya, an Extraneous-fighting service provided by Hitsuji.

A military test accidentally sends a modern-day army back in time to feudal Japan. When their actions in the past begin to have an effect on the present, another unit is dispatched to retrieve them. But the commander of the lost unit has other plans. He intends to use his advanced technology to conquer Japan and change his country's destiny. -- {Summary by Mangaupdates.com}

The manga is about the Sengoku Jidai (Warring States Period) of Feudal Japan. The rulers of the land - Daimyo - and their servants - Samurai - fight to get the rule of all Japan. Especially, the most powerful ones are the Devil King Oda Nobunaga of Owari, the Tiger of Kai Takeda Shingen, the Dragon of Echigo Uesugi Kenshin, the Hojos of Odawara Castle

From MangaHelpers:
Sawamura Soushi is a soldier in a war-torn future. He meets a cute, innocent young girl named Nadeko, with whom he starts up a friendship. Nadeko is a flower girl, one of the girls who has a flower growing from her heart. One day, when Sawamura is trying to protect her from danger, she confesses her love to him and protects him with the plant growth that suddenly comes forth from her body.
Sawamura soon learns that there is a special squad of flower girls and their partners, and that their abilities are awakened when they fall in love. But does he really love a girl that is a decade his junior, and will he be willing to be a good partner for her? What's more, he learns that the awakening also starts the growing of the flowers in their bodies, so that the flower girl soldiers have only a short while longer to live. How can Sawamura and Nadeko make the best of such a terrible situation?

A manga based on the Sengoku Basara 3 action video game. The main characters, Date Masamune and Sanada Yukimura are two warlords who are both attempting to conquer all of the land. Almost greater than their desire to conquer, though, is their desire to fight each other in single combat.

From Bliss:

With the death of Nobunaga, Japan is thrown into a mist of battle once again as the many warlords of the nation try to unite it as one. But can any succeed when faced against Nobunaga's sucessor, Toyotomi and his lust for power thats sets the flame for war as he try to take over the world fulfilling his ambitions of absolute power?

In Hell, Tobe has been tortured for 300 years now, and his spirited desire to be free doesn't show any signs of fading. Tobe is given a final chance to make up for all the sins he committed while alive on Earth: he must use the legendary sword, Togari, to defeat and destroy 108 Sins in 108 days.

So Tobe is sent to modern-day Japan, and even though things aren't exactly like the Japan he remembers, he must defeat the 108 Sins in time to be free again.