Shizuku Utsugi, an energetic girl who grew up on an island, leaves it and started her life on the mainland in order to go to high school. Her mother set up only one requirement: “for the next 3 years, just enjoy your school life”. Joining the lacrosse team carves out the path she will be taking.

This is a no-holds-barred story about an ex-biker gang leader turned cop, Kenji Date. Operating under the nickname Hyena, Date rubs pretty much everybody within the police force the wrong way as he goes about his business ridding the city of all its scum.

Bad Police also contains two separate short stories at the end of the volume:

Bomber

The Chinese leader, Deng Xiaoping, had promised to rid Hong Kong of its criminal organizations. One of the places they migrated to was Japan. Kamon Shou is a delinquent who just got released from Youth Detention after spending two years there and is about to feel first-hand the effect the Hong Kong mob has on Japan.

Artemis

Ginko is a detective working for the famed Holmes Detective Agency, an agency that takes on the most dangerous of jobs: ones that even the police wouldn't even think about doing. She gets hired by Ms. Nancy to retrieve her seven year-old son, Tom. Tom was taken away by her father-in-law's mafia organization in hopes of cultivating Tom to become the next leader.

Yukikaze is just a young girl but her and her friends have the incredible responsibility of being the naval force of her nation. As part of Seiran Team 3 of the Wadatsumi naval base, Yukikaze and her female friends, Isokaze, Nowaki and Takao, all attend the naval academy. But in this world, they do not work on ships, instead, they themselves are the weapons, able to travel across oceans at high speeds and engage in warfare using their equipped artillery. When an enemy nation attacks the base to take control of an important strategic point, only Yukikaze is left standing and all hope seems lost when a beautiful woman named Taiwa appears with the secret weapon to defend Yukikaze and the naval base.

Like the earlier Battle Royales, a class of middle school students are picked to compete in fights to the death on an island until there is only one left.
The manga follows the point of view of Girl #10 Makoto Hashimoto, an unlucky girl who fears that her class will be chosen to participate in "the program," a mysterious event that forces students to kill each other. Makoto attends Shikanotoride Junior High School. After the encouragement of her best friend Itou Yamamoto and her mother she decides to face the chances. Her fears are supposedly put to rest when word spreads that all 50 Programs had already been executed in the year making them 100% unlikely to participate....

From Tokyopop:
In the future, random Jr. High School classes are chosen to compete in a game called Battle Royale. The rules: only one student can survive after 3 days on an island or else they all perish. Weapons are handed out and each student is sent out into the field alone and unprepared for the horror that awaits them. The classmates turn upon themselves in a battle for survival, treaties are made and broken, and former friends become foes as the relentless countdown continues. Amid the betrayals and rising body count, two classmates confess their love for each other and swear to survive this deadly game together.

Note: An English-language release of the collected volumes, published in the United States, Canada, and United Kingdom by Tokyopop, was extensively rewritten by Keith Giffen, whose script does not completely follow the original manga. This adaptation makes several changes to the plot. Most notably claiming "the program" is a reality TV show and changing the time that the story is set in by almost 10 years, both of which are contradicted in later volumes.

From Vampire Knight:
Ai was your normal, everyday grade teenage girl until one day, she was involved in a fatal car accident. In the hands of the Specialized Secret Police Organization, she was able to be revived. With her newly gained powers acquired through the operation, she becomes a defender of justice. With the mysterious (and a little perverted) bishounen Sagiriya Shinogu as her partner, she fights the forces of evil!

"Basara - The spirit of freedom which denies old authority, transcending traditions and customs."

Born under a prophecy that will liberate and unite Japan, Sarasa has had to take her brother Tatara's place as the "Boy of Destiny." Fighting for the oppressed, Sarasa journeys across Japan to gain allies and defeat her enemies--all while keeping her identity a secret!

Basara won the Shogakukan Manga Award for shoujo in 1992.

From Hokuto no Gun:

Three thousand years ago, a sect of ancient Indian priests who sought world peace and justice, developed an unimaginable fist and sent their disciples throughout the world. Their mission, passed on to their descendants, was to live in the shadows of history and judge the evils of this world where the law cannot judge! They are the Family of Brahman!

From Viz:
Nature made Ash Lynx beautiful; nurture made him a cold ruthless killer. A runaway brought up as the adopted heir and sex toy of "Papa" Dino Golzine, Ash, now at the rebellious age of seventeen, forsakes the kingdom held out by the devil who raised him. But the hideous secret that drove Ash's older brother mad in Vietnam has suddenly fallen into Papa's insatiably ambitious hands--and it's exactly the wrong time for Eiji Okamura, a pure-hearted young photographer from Japan, to make Ash Lynx's acquaintance...

From Kodanclub:
Long, long ago, a woman who had coupled with a strange beast gave birth to a Saishi, a half-human half-beast creature, whose body was filled with venom. These brutal creatures were used in battle during times of unrest, but during times of peace, they were shunned and hated. Indeed, they were cursed.
A Ronin samurai called Gen Tsukinosuke is one of the few surviving Saishis and the owner of a magnificent sword, the "Fangs of God." He travels in search of his estranged sister and sleeps with women who yearn for death, killing them with his deadly poison. The story takes place in the war-torn days at the end of the Edo period. With a destiny to be a Kaishi, Tsukinosuke is also being swallowed up by the harsh flow of history.

Note: Bestia is the extended version of Ryuugetsushou and contain more content as Ryuugetsushou has three volumes and Bestia has four volumes.

Dokuritsu Tenjin Gakuen is a special school that give grades through "Battles" instead of tests. So everyday, the students engage in all-out battle and get points based on their rankings. Two students Hattori Kyousuke and Kujou Hachie (aka Hachi) are childhood friends. While Hachi is the strongest freshmen girl of the school, Kyousuke is just an above-average student, but he cannot remain mediocre forever because Kyousuke made a promise: to defeat Hachi and marry her, or else Hachi is forced to wed her perverted cousin. Can Kyousuke get strong enough to fulfill their promise?

From Loyal Kiss:

What if one day a stranger suddenly kissed you like in a movie?
And furthermore, that person was handsome like a movie star?

A heavy eater and simple minded,
A slow witted girl with no sense at all.
However, she is the area's best fighter, Kang DaYeon.

When she saves a person on the brink of death,
he shows his gratitude with a sweet and sensual kiss.
The weird transfer student Kang Uh yuk (Oh yuk?).

An exciting story of taming and being tamed!

War looms over everyday life in the capital. Two girls who seek respite in the bucolic outskirts of Suginami Ward learn that a riverside where spirits reside is creeping with rotting anomalies. As the adults prove incapable, youth must take up arms.

Follow the final moments of a shinsengumi first squadron captain, Okita Soji, as the author tells his version of the story.

—I believe in that smile. Even if you don't have a soul—

2105 AD, Japan:

The humanoid androids hiEs became part of people's lives, handling things humans could and couldn't do. Endou Arato, unlike his friends Kenko and Ryou who hate hiEs, felt sympathy for hiEs which are supposed to be just objects.

One night, Arato suddenly gets assaulted by mysterious falling cherry blossoms that make hiEs and machines run havoc. Will the cornered Arato be saved by the mysterious hiE Lacia....

Pronounced - Bee heun From: Easy Going Scans There are some heroes whose names you do not know, whose faces you have not seen... They operate secretly, and their actions can make a difference in the outcomes of wars. Be Huen is the story of such a man. To follow his story, one must search in the shadows, for that is the only place you could find him... Webtoon from Naver Please address this work as a Manhwa (Korean word for cartoons)

Collection of short stories:

• Black City

• Two Keitas

• Proto One

• Jewel of Love

These are side stories that take place after the Black Blood Brothers anime timeline.