Saitou, Takao

Koike, Kazuo

For four decades, Golgo 13 has been the world's greatest assassin for hire - sometimes to settle a private score, and sometimes to change history!

His real name and nationality are unknown - but his legend is everywhere. G13 never fails a job, and never sees his clients again...

...unless they try and betray him!

Golgo 13

ゴルゴ13

Takada, Yuuzo

Through a strange series of events, a young man named Yakumo Fuuji becomes the immortal slave of the last of a race of 3 Eyed immortals. The immortal, Pai, absorbs his soul to save his life, making him immortal in the process. Now, he begins a journey with the female immortal in an attempt to find a way of becoming human. Of course, there are many complications along the way, not the least of which being that the immortal is a female with a split personality, one achingly cute and the other being no-nonsense destructive power, and romances that develop between.

3x3 Eyes

3×3 EYES

Yamagishi, Ryouko

Historically, Prince Shoutoku Taishi lived from 574-622 AD and united Japan under the centralized government of an emperor. Known by his real name in the manga, Umayado, he is a cold and calculating politician and mystic that uses his beauty and cunning intellect to manipulate those around him. Umayado's only weakness is Emishi, the son of a rich family who Umayado finds himself hopelessly attracted to.

(Source: ANN)

Hi Izuru Tokoro no Tenshi

日出処の天子

Terasawa, Buichi

Gokuu is an ordinary private eye for hire. While working on a case involving an illegal weapons dealer, he notices a lot of the detectives working on the case committing suicide for no apparent reason. After Gokuu gets a little too close to the truth, he is then put in a situation where he must stab out his left eye to avoid certain death. Gokuu then awakens in a mysterious lab where an unknown scientist replaces his eye with a cybernetic one that allows him to control every computer in the world.

Midnight Eye Gokuu

Goku: Midnight Eye

MIDNIGHT EYE ゴクウ

Tezuka, Osamu

Collection of various short stories. 

(Source: M-U)

Tiger Books

タイガーブックス

Kuroiwa, Yoshihiro

Iizuka, Yukihiro

Raimon Ryuuta and Kuuko are sibling. Their parent is a treasure hunter, so since they were little they lives in a shrine with their parent's best friend who is an old man.  

Ryuuta and Kuuko are interested in anything strange, curious issues. Together they set up their business as a Fushigi Hunter, to solve cases of strange paranormal activity people asking them for help.

Fushigi Hunter

不思議ハンター

Kamiya, Yuu

Two strange encounter with one unfamiliar name confused Rui. First she unconsciously blurted out when she saw a guy in her school, another time is when she heard a woman cries that unfamiliar name out just right when Rui saw the sword her father who is an archeologist shows it to her. With this sword Rui never know that it could transport her back to the old Japan where her father's troop is having a war with another. 

Note: Included in the back of this manga ,there is also an Omake which is a story about Tatsuki and Dule from Maou no Kiza (魔王の刻) This is a prequel story when Tatsuki is still a small kid that doesn't know about his power yet.

Hakuryuu Izayoi den

白龍十六夜伝

Miura, Kentarou

Studio Gaga

Guts, a former mercenary now known as the Black Swordsman, is out for revenge. After a tumultuous childhood, he finally finds someone he respects and believes he can trust, only to have everything fall apart when this person takes away everything important to Guts for the purpose of fulfilling his own desires. Now marked for death, Guts becomes condemned to a fate in which he is relentlessly pursued by demonic beings.

Setting out on a dreadful quest riddled with misfortune, Guts, armed with a massive sword and monstrous strength, will let nothing stop him, not even death itself, until he is finally able to take the head of the one who stripped him—and his loved one—of their humanity.

[Written by MAL Rewrite]

Included one-shot:
Volume 14: Berserk: The Prototype

Berserk

ベルセルク

Samura, Hiroaki

Manji is an infamous swordsman in feudal Japan who is known as the "Hundred Man Killer," as he has killed one hundred innocent men. However, there is something far more frightening than his ominous reputation: the fact that he is immortal. This is the handiwork of eight-hundred-year-old nun Yaobikuni, who placed bloodworms capable of healing almost any wound in Manji's body. 

To atone for his crimes, Manji resolves to kill one thousand evil men. Yaobikuni agrees to this proposal, saying that if he succeeds, she will undo his curse of immortality. Soon after this promise, Manji meets Rin Asano, a 16-year-old girl who requests Manji's assistance in killing those who slaughtered her parents.

Initially reluctant, Manji refuses Rin's desperate plea. However, owing to her evident lack of strength, Manji changes his mind and agrees to protect Rin for four years. With this partnership set in stone, the two embark on a perilous journey of bloodshed, vengeance, and redemption, each to fulfill their own life's cause.

[Written by MAL Rewrite]

Mugen no Juunin

Blade of the Immortal

無限の住人

Monkey Punch

International man of mystery and master thief extraordinaire, Lupin III comes from a long line of high stakes bandits, all committed to stealing from the rich and giving to themselves. Fortunately, Lupin tends to avoid robbing society's virtuous and, instead, targets some pretty shady characters.

Of course, he partners with some pretty shady characters as well: Daisuke Jigen is an ex-mafia hitman who carries himself with a somber demeanor, his trademark black fedora tilted forward to hide his eyes. Goemon Ishikawa is a cipher-like swordsman with samurai-ish overtones who mysteriously fades in and out of Lupin's exploits. Fujiko Mine is the object of Lupin's affections, but, since she is a thief herself, the duo's romance more than occasionally clashes with their competition for big scores.

The global police force, Interpol, and in particular the tenacious Inspector Zenigata, long to capture Lupin and his gang. Zenigata's relationship with the eponymous master thief is a complicated one, characterized by mutual respect laced with utter disdain. The two have even worked together when it's served both their interests, but they understand that when the crisis ends, they must resume their former wariness and animosity toward each other.

(Source: Tokyopop)

Lupin III

Lupin the 3rd

ルパン三世

Tanaka, Masashi

Gon, a tiny dinosaur with a huge attitude, has adventures as he travels through forests and rivers, swims with fish and even flies with birds. Gon and his animal friends communicate without speaking, with Gon giving the occasional bite to teach a bully a lesson.

(Source: ANN)

ゴン

Itou, Akihiro

Problems of the supernatural are menacing the city, and it's up to Kagura Security to stop them! Together, firey president Yuka, stylish Maki, computer expert Takami, brilliant mechanic Yui, and normal guy Youichi, are detectives, damage control, and more.

Manga Like JoJo no Kimyou na Bouken Part 8: JoJolion