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.

Young sports enthusiast, Yamato Hino hears voices calling out to him and during a thunderstorm, he is brought to a parallel world. In this world is the Kingdom Mu, under attack by the evil Dorado of the Empire of Dinosaurs. Yamato was summoned from the prayers of queen Aila Mu to pilot a statue known as the God Mazinger. Joining the Mu army's ranks, Yamato fights against Dorado and his army.

(Source: Mazinger Wikia)

Slight retelling of the 2001-2002 Mazinkaiser OVA series. Included in this vokume is a short story called Mazin Kaiser: Shin Majin Densetsu (Mazin Kaiser: Legend of a New Demon God).

Great Mazinger (Adapted From)
Mazinger Z (Adapted From)

A tale of a young hero on a magical journey!

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

A kid hears a voice and suddenly finds himself in the company of a demon!

Honey Kisaragi is a normal catholic schoolgirl. That is, until her father was murdered by the Panther Claws who were seeking the Airbourne Elemental Fixation Device. She then finds out that she is actually an android created by him with the Airbourne Elemental Fixation Device within her. She is now trying to live a life as a normal schoolgirl and seeking revenge against Panther Claw.

One of Go Nagai's first works, this violent period piece takes place in the 1500s and stars a talented low ranking ninja named Shishimaru. In it, Shishimaru fights against Ginnai Doma (an immortal samurai who, despite being butchered multiple times, doesn't die) because Ginnai murdered his comrades. Despite being set in historical times, it has machine guns/lasers/robots/atomic reactors with no real explaination.
(Source: MU)

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

Mazinger Angels chronicles the adventures of four women who pilot giant robots in the Mazinger vein. The concept is a spoof on the late 70's and early 80's popular TV series Charlie's Angels.
Three of the robots, Aphrodite A, Diana A and Minerva X are from the original Mazinger Z series, while Venus A is from the Great Mazinger series. Their pilots are also traditional characters from Go Nagai's universe, Sayaka Yumi and Jun Hono from Mazinger Z and Great Mazinger respectively, and Hikaru Makiba and Maria Fleed from Grendizer.
The style of the manga highlights the sex appeal of both the characters and the mechas, sometimes similarly to the way Aika's female characters are shown.
(Source: Wikipedia)

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.

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)

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)

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)

Mazinger, later called Mazinger U.S.A. Version or Mazinger U.S. Version to avoid confusions with the rest of the Mazinger works, is a 58 pages long manga created by Go Nagai specifically for the US market. It features full-color graphics, text in English and left-to-right formatting. It is partially inspired by Gulliver's Travels.

Although I am a big Devilman fan, and have read a couple volumes of Amon, I am not 100% sure how it ties in with the Devilman continuity. So what I will do is summarize Devilman, and then review Amon. Beware, this review will contain Devilman spoilers, it would be pretty hard to write this without them. Devilman is the story of Fudou Akira, a timid, bullied teenager who is living with his friend Miki due to his parents being away. (They are archeologists.) One day, Akira's best friend, Asuka Ryo tells him he has something urgent to tell Akira and takes him to his house where he explains that demons once ruled the world but were frozen during the ice age. For a long time they were trapped, but now many of them have been freed. Ryo tells Akira that the only way to combat the demon threat is to unite with one. Furthermore, demons can only be controlled by a person pure of heart. Therefore, Akira must unite with a demon to become mankind's savior. With Ryo's help, Akira is able to unite with Amon (Hell's god of war.) and he becomes Devilman. OK, now fast forward to Amon. (Here come the Devilman spoilers.) Miki is dead. Akira's precious friend was killed by the very humans he was protecting. Ryo was actually satan - in human form. The trauma of Miki's death causes Akira to fade into himself and this allows Amon to take over. At the same time, it seems that satan has initiated the apocalypse. (There is this goup spreading from Japan throughout the world, melting/absorbing people.) satan works to bring the demon race under it's(?) (...satan is a hermaphrodite. I can't say "his" or "hers".) control as they run rampant, killing people. The human race, facing the demon threat has entered into martial law and chaos, frequently killing each other even. It seems the world is headed for destruction, and Akira's friends Dosu 6, Mericou-jin (I think I spelled that wrong.), and Miiko along with some other unidentified psychic figures, try to restore Akira's consciousness. While all of this goes on, Amon has only one thing in mind - killing satan. If you can tolerate the violence and demonic themes, Amon is a solid story delivered by the pen of the great Go Nagai with excellent art by Yuu Kinutani. It's not for everyone, but I recommend it to all who are confident they can handle it.