Continuation of the successful manga and anime series Mazinger Z, Great Mazinger starts after the defeat of Mazinger Z. Tetsuya Tsurugi is the new protagonist, piloting the powerful Great Mazinger, a creation of the once thought dead Kenzo Kabuto, the father of Koji Kabuto. This time the enemy is the Mycene Empire and its powerful robots. (manga updates)

Welcome to the Sparta Acadamy, run by a head master called Satan's Toenail. If you get anything below a 90 on every test, they punish you with torturous devices and the like. But fear not, there is one who stands up to this great injustice, in nothing but a mask and high boots. That's right, a naked fighter of Justice, Kekkou Kamen is here to punish the unfair system of the Sparta Acadamy and bring justice to those who study too much!

This series is a complete remake of the original Mao Dante, with new designs an a story slightly inspired by the anime of 2002. This time, the story spans longer, the character design is different, and all unanswered questions left when the original series was interrupted, are responded. This time, Mao Dante has a proper ending.
The story is divided in four parts: Kami Ryaku Hen, Gen Ma Hen, Mado Hen and Kami Ma Taisen Hen. (mangaupdates.com)

In the prehistoric times when men were reptiles and the world was over-run with dinosaurs, humanity was threatened with war. The humans are fighting against the almighty Gor to return peace to their world.

Manga adaptation of Dante Alighieri's classic work "The Divine Comedy".

A Violence Jack one-shot from 2001. What happens when Jack and some bikers mysteriously get sent back into the age of samurai.

Set in 2025, a roboticist named Fudou Yuuki joins a project involving a large mural depicting humanity's true past as well as the ancient but advanced technology found in Antarctica.

(Source: Devilman Wikia)

Slight retelling of the 2001-2002 Mazinkaiser OVA series.

The year is 2005. The police, unable to carry out their work, are asking for help from talented private investigators for the most complex and important work.
Among these are Seiko Hayami, who, with the help of her assistant Hisashi Hanyu, will be involved in cases concerning strange apparitions of monstrous beings, which will eventually lead to a confrontation with the Panther Claw terrorist organization/religious sect, who worship the goddess Zora, under the command of the bestial Sister Jill.
Defeating the organization seems impossible, but help is at hand from the android, Cutie Honey. Having seemingly traveled from the 70s to defeat Panther Claw, she resides with Seiko in the form of Hisashi. (Source: Wikipedia)

A story where students face off against teachers to bring down the tyrannical education system.
(Source: MU)

After the world ended in the original Devilman, Akira Fudo is in hell, seeking the soul of his beloved Miki while at the same time Doctor Hell is beseeching the underworld for power in order to get his revenge upon the hated Mazinger. Akira sets in motion a chain of events that earn the enmity of Hades himself, who'll stop at nothing to avenge the slights Akira commits against him...

The archangel Micheal gave King Solomon a ring with the name of God inscribed on it. Using this ring Salomon enslaved 72 demons and used them to build his kingdom when finished he sealed them in an urn and cast it into a lake. 3000 years later the ring of Solomon is in the possession of a young Tokyo girl named Miki who believes herself a witch.

Jun's 18th birthday has been selected by family tradition to be the day that her husband is chosen. Many high-class families have come to try to marry into the physically and economically powerful Asuka dynasty, but Jun is not interested. With her servant Kratta in tow, she runs away from the groom-choosing party.

Akira Fudo, who has become the Devilman, the only being who can fight demons; a being possessing the powers of a demon and a soul of a man.

A long time ago, the Earth was ruled by demons. The demons constantly fought each other for survival, but soon found themselves fighting a new race of beings: The first humans. The demons then became imprisoned in ice after a great cataclysm. They would remain there until the ice melted, after which it was said Satan would rise and lead them in Armageddon. That time has come in Go Nagai's Devilman.
source wikipedia