In Japanese mythology an inugami is a type of shikigami, similar to a familiar spirit, resembling, and usually originating from, a dog, and most commonly carrying out vengeance or acting as guardians on behalf of the inugami-mochi, or "inugami owner". Inugami are extremely powerful and capable of existing independently, as well as turning on their "owners" and even possessing humans.

Mizumura Shinta didn't know what to make of the situation when the sexiest girl in school, Kishimoto Ririsu, starts seducing him and things get extremely physical. Shinta isn't rich or the popular guy in school so it doesn´t make sense that Ririsu would be so interested in him. But Ririsu is in fact a vampire, a secret that she will kill to keep hidden. As the relationship between Shinta and Ririsu grows, it gets harder for her to keep the secret hidden from him. And when those close to him, like his semi-romantic childhood friend Makimura Chizuru, are involuntarily thrown into the chaos, deep dark secrets get revealed.

At the beginning of the Edo period (1603-1868), when people enjoyed a time of peace, Lord Tokugawa Tadanaga decides to hold a fighting tournament. In the past, matches were fought with wooden swords, but this time real swords will be used. The one-armed Fujiki Gennosuke and the blind Irako Seigen will fight each other in this tournament, even though both of them are disciples of Iwamoto Kogan — known as Japan's greatest swordsman. So begins the story of intertwining fates, conflict, and strange destinies.

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 time travel, aliens and the alternate universe war.

From Antisense Scanslations:

Nene, an orphaned girl who was taken in by a priest, lives under the church's charity, selling matches in town to make ends meet. One day, the priest decides to send her to work as a maid for a local lord. On the road out of town, she is rescued by his nephew, who escorts her to the lord's palace. But it turns out a certain fairy-tale loving demon has taken up shop as the lord, and the priest's motives may be less than altruistic... What will 'Lord' J scheme up for this erotic retelling of The Little Match Girl?

The first half of the book is made up by the titular story, a serial killer thriller that gets all kinds of meta and crazy as it progresses. The second half of the book consists of a short interview with Kago (and Ryuichi Kasumi, a Japanese crime fiction writer) and a number of short stories. (from Caterpillar).

A collection of short stories:

1. Oral Cavity Infectious Syndrome
On the surreal premise that women's mouths take the often weird shape of their partner's penis, Yoriko starts an investigation to discover with whom her boyfriend is cheating.

2. Local Tourist Information
A guide to an extraterritorial region of Japan.

3. Back Streets in Front of the Station
A girl goes crazy about reverse sides of different things, including streets, cars, and animals.

4. Genesis
Kago Shintarou's rendition of the Book of Genesis.

5. Superglue
What happens when you step on something so disgusting that you never want to uncover it?

6. Akutagawa in Front of the Station
A surreal homage to the writings of Ryunosuke Akutagawa.

7. When All's Said and Done - also included in Hell Season
A gruesome tale of hardened faeces, and a limbless girl.

8. Multiplication
Comic panels are multiplying and create opposing clans.

9. Abstraction
A two dimensional comic about young lovers turns 3D causing the characters' bodies to deform.

10. Blow-Up
What happens when every comic page features exponentionally more panels than the previous one?

11. No Need for Caution
The action of the comic happens outside of the panels--literally--in the white space.

12. The Memories of Others
Everyone's memories become visible via floating comic book panels.

13. Lord of the Ring
An incompetent sumo wrestler uses the powers of a forbidden pair of pants to overcome and shame his competition, until one day someone rises to attempt to crush him and take the pants for himself.

14. Spinning Thoughts
Wearing urinary calculi is the latest fashion trend.

1-3) Seventeen year old Ringo Kinoshita falls in love at first sight with student teacher Yashachi Kai but where are the rose colored days of his first love? Unrequited love is bad enough but it seems like Kai-sensei can't stand him at all. With a prank gone wrong and a series of misunderstandings just how will these two come together or will they just be driven further apart?

4) Happy game: A boss and his subordinates peculiar love.

5) Break you: A selfish young master is going to have an arranged marriage, but he's in love with his caretaker.

6) Love is good: Shiba always gets turned town by girls because they prefer his friend Kitaro. But Kitaro's preferences are...?

Suwa Daisuke is an ordinary, but popular, high school student. One of his classmates, Aikawa Hinako, is somewhat fearful of men and because she ran away from just his attempt to touch her hair, he states to one of his buddies, that she is the only one he wouldn't date, unaware all of the people in his classroom could hear them, including Hinako.
Daisuke's attitude changes after he unintentionally hears a shocking truth that she confesses in an abandoned church. His former annoyance turns to compassion and concern. Hinako is unaware that he knows her 'little' secret. Believing him to have no romantic interest, she becomes more relaxed and comfortable in his company. Their relationship faces a lot of obstacles, including jealous classmates.

Older brother forces younger into a sexual relationship after their parents' death.

1) Training Love
What happens when Tachibana finds out that Aya has a secret hobby, will he tell Fujiki, who Aya likes or will he keep it a secret? Soon Aya starts to have feelings for Tachibana, how will it go?

2) Pale Sacrifice
Yuri's handsome bodyguard Kashiwagi is always there to protect her. But at night he changes into a wolfish guy and Yuri wouldn't mind being eaten up...

3) Midsummer Temptation
Shiori was a substitute teacher when she met Yuu, and now the two have been dating for awhile. But Shiori is trying to find a job and the stress may be too much for their relationship.

4) The Wound
Mayu has just started dating Kazuya, the hardworking guy she sees every day on her way to work. But there's something she's worried about telling him: she was in a car accident when she was three and has a huge scar that runs down her body. But Kazuya won't mind, right?

Fudou Jun is a highschool teacher and takes a trip with a group of students. While there, a group of martial artists staying nearby take a strange interest in the girls.
These men are actually demons and after changing into their true form break into the cabin to rape the girls. One gets Jun and violates her.
She feels her soul being torn apart and transforms into Devilman Lady. With newfound powers and strength she kills all the demons and protects the girls from any further harm.
What are these demons and why did she turn into a hybrid of one? What does this mean for her and for the rest of humanity?

"We can't live without each other. You're my other half."

"I've killed a woman." The domineering voice on the phone was that of a high school classmate, Mitsuo Ichikawa.
Buried memories from the past resurface in the heart of a man with the same name, Mitsuo Ichikawa. It drags him right back into the passions of the past. They reunite as accomplices, yet their relationship as master and servant slowly changes into something new...

"An unknown city in an unknown land. Demons infest the land, madness rules the streets. Money and greed control the people who prey on each other. The young use their flesh, the strong their violence and sly their wits, trying to reign over the city. The weak are raped. Pleasure is only for the strong. That is the law, however cruel. The game has begun. The question is who will bring it to an end."

From Viz:

Ian and Rin used to just see spirits. Now Ian is one. Using the Fairy Cube, Ian must figure out how to stop the lizard-spirit Tokage from taking over his life and destroying any chance he has of resurrection.

V.3 contains an unrelated short story called

• Psycho Knocker
Ashina Tomo is your average school girl who somehow constantly has terrible images of a train accident. One day, on her crush’s birthday, her best friend brings her to an isolated print club machine which is rumored to allow prayers to come true. What would happen when your prayers come true, but not the way you want them to be? By a cursed print club machine nonetheless.

From mochi*mochi: Morimura Yuuki, concertmaster at Fujimi Citizens Orchestra, loves music and his small, amateurish, but tight-knit group at Fujimi. His world is shaken up when a brilliant, new conductor, Tounoin Kei, is recruited to breathe life into their music and orchestra. Yuuki feels Tounoin's high demands will do nothing but chase away the members, but when he draws more from them than they ever thought possible, Yuuki reconsiders his own motives for staying at Fujimi. Obviously, the newcomer Tounoin understands Fujimi more than Yuuki ever did and even has the girl that Yuuki's been in love with for the past three years, at his feet. Nursing a wounded pride Yuuki resigns from Fujimi, but Tounoin has other ideas...

Fear runs rampant throughout Tokyo with the revelation that demons in fact exist amongst us. Paranoia and the darker side of humanity boils onto the streets as people turn on one another, suspecting that anyone could in fact be a demon hiding in human clothing. Amidst the growing tensions, tragedy strikes Akira causing his mind to snap, retreating into his subconscious, allowing his Devilish alter-ego Amon to break free from Akira's cage of flesh and wreak havoc on both human and demons alike.

Ryo and Akira travel through time in order to eradicate demons that could have changed history. Various periods are visited: from pre-WWII to ancient Greece, middle ages in France meeting Joan of Arc, far-west America, renaissance.

When demons begin taking over the bodies of humans, only the strongest survive. When a practicing young witch named Miki Makimura asks her friend Akira Fudou for help with a ritual, the spell is interrupted and Akira is left on the brink of death. His body is overtaken by a powerful being named Amon. Now torn between his humanity and the demon within him, Akira uses his abilities to fight in the war between demons and humans for the future of the world itself!

These are different stories involving Devilman's world. Some are about Devilman and add to the mythology some are separate stories that don't involve Devilman but take place the same time as the events in the original Devilman manga. They are illustrated by various artists. There are some color pages in the start middle and toward the end. There are some truly amazing art and stories in these volumes. Number one is written and illustrated by Lazy Hagawari, Tatsuya Egawa, Katsuya Terada, Ken Ishikawa, Go Nagai and Shinichi Hiromoto. Number two is written and illustrated by Hitoshi Iwaaki, Noriko Nagano, Go Nagai, Akihiko Takadera and Kazuko Yumeno. Number three is written and illustrated by Noburu Miyama, Miki Toro, Shinobu Kaze, Sho-u Tajima, Masaomi Kanzaki, Yoshikazu Yasuhiko and Iou Kuroda.