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

Yasuhiko, Yoshikazu

The young Arion is tricked by Hades and is taken to the underworld where he is trained to become a warrior strong enough to defeat even a god. Thrusted into a war among the Titan brothers, Arion embarks into a colossal saga towards the Olympus, home of Zeus.

This is the story of Arion, a little boy raised by only his blind mother in a barren land. One day a man comes to visit his mother. This man calls himself Arions uncle and Arions mother calls the man Hades. The uncle convinces Arion that he knows where Arion can get a hold of a special herb that can cure Arions mothers eyes, and so the boy willingly comes with his uncle Hades on a journey. The moment Ariona agrees to go, his mother feels it in her heart and rushes out of her little house and screams at the sky ; Zeus, your brother is taking Arion to the land of the dead. Follow Arion on his adventures among old greek gods and godesses.

(Source: ANN)

Arion

アリオン

Ogino, Makoto

A young mystic without a past, Kujaku was born under a dark omen possessed of incredible supernatural powers. Raised by priests, he has learned to use these powers for good. But the evil Siegfried von Mittgard seeks to steal his birthright, and rule the world as the Regent of Darkness. He has dispatched bloodthirsty minions to destroy Kujaku before he can awaken to his destiny. Now, Kujaku must unravel the riddle of his past, before the power within consumes him!

(Source: AniDB)

Kujakuou

Peacock King

孔雀王

Nagai, Go

Soft-hearted Akira Fudou has always been somewhat of a pushover. When he reunites with his childhood friend, Ryou Asuka, in a fateful encounter, Ryou reveals to him the terrifying reality of his father's research: demons exist and are planning to claim possession of the earth once again.

Eager to help his friend save humanity, Akira agrees to attend Black Sabbath, a party filled with depravity and corruption, to attempt to merge with a demon. A near-death encounter causes him to unify with Amon, a demon feared amongst even his own kind. Together they form Devilman, a combination of Amon's strength and Akira's pure heart.

After uniting with Amon, Akira begins to fight against the demons with his newfound power, desperate to stop the downfall of all human civilization.

[Written by MAL Rewrite]

Devilman

デビルマン

Tezuka, Osamu

Collection of various short stories. 

(Source: M-U)

Tiger Books

タイガーブックス

Uno, Hiroshi

At the end of 19th Century, Captain Drake, the pirate who traveled all over the world died. Rumor has it that he hide his treasure that is worth thousand millions pounds away from people. The map to this treasure is being torn into 2 parts. One part of it is owned by the military, lead by Colonel Visconti. The another part is owned by Drake's son. 

That young boy's name is Captain Kid, and with his Black Lightening sword and Kid's cunning crews the journey to find Captain Drake's hidden treasure begins.

Captain Kid

キャプテンキッド

Azumi, Ryou

The masterpiece of Wagner's opera "Ring of the Nibelung" now comes as a Japanese comic! It is said that if one wears the ring made out of gold taken from the river of Rhine, one can rule the world. Only those who abandoned the joy of love can obtain the power to make the ring. Alberich who was reviled by the fairies of Rhine, cursed love itself and made the ring.

(Source: Creek &amp; River)

Nibelung no Yubiwa

Ring of the Nibelung

ニーベルングの指環

Okano, Fumika

A living mineral, a living stone...a living jewelry, Irisite is the rarest and the most valuable jewelry in the world. 

When Feilin landed his plane to fix some of his engine in some small town, he comes across Jura whom is not a mere human. Jura is the Iris, the living stone. Once the Iris grows up, their eyes will becomes a precious stone called Irisite and the merchant who sell Jewelry for their living will take them out while the Iris is still alive. The blind Iris will later being on sales as a slave.

Feilin feels sorry for Jura and wanted to helps the young kid escape from Jura's owner, an evil merchant who is a powerful figure that want to keep Jura for his own benefit.

Iris no Tamago

イリスの卵

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

Takeuchi, Naoko

"The Pretty Guardian in a Sailor Suit! Sailor Venus has arrived!"

Thirteen-year-old Minako Aino is an active tomboy who loves idols and video games, and is a popular member of Shiba Koen Junior High School's volleyball team. One day during her PE class, Minako accidentally stumbles upon a white cat, who later sidetracks her from talking to her crush. At home, Minako wonders if she is beautiful, and hearing this, the cat introduces himself as Artemis and gives her a compact mirror that shows Minako more than just her beauty.

Before she can fully take in the cat's words, Minako receives a special pen that can transform her into the masked champion of justice, Sailor V! As her carefree love-seeking days begin to include adventures against the energy-seeking Dark Agency, Minako will learn to embrace the full extent of her destiny.

[Written by MAL Rewrite]

Code Name wa Sailor V

Codename: Sailor V

コードネームはセーラーV

Adachi, Mitsuru

The story is set in a place very similar in appearance to Earth in the Edo period. However, Adachi (the mangaka) regularly reminds the reader all throughout the series that the setting is another planet in the distant future which just happens to look like Earth.

After the death of his mother, Shichimi sets out to join his step-brothers and -sister who live together in Karakuri Tenement, a place provided by the father they have never met. He finds out that each of them had different mothers (all of whom have died), but were fathered by the same man. Not long after Shichimi's arrival, the siblings decide to journey to visit the graves of each of their mothers. On this journey, they encounter many dangers.

(Source: Wikipedia)

12 Manga Like Shin Angyo Onshi