A Collection of early stories:

From Covenant of Darkness:

Face, body, and talent, all 3 are what conspires Misako’s love for the star of the basketball club, with a genius ability and super beautiful Urasawa-kun. However, Misako's first and last profession of love in her lifetime was drastically discarded. Strangely, Urusawa-kun decided to model nudely for an art exhibition in hopes to winning a prize because he has an eye for that thing. The lingering affection is banned and the conditions that sends Misako's heart to abide… A romantic comedy treasure?!

First Kurumatani Haruko Long series (no more a simple oneshot)!!! By Alessia-chan: Ruki is an otaku and is in love with a character of manga called Shun-sama! Suddenly she meet a guy that will live in her house due to her mother sudden travelling and that looks exactly the same as Shun-sama! But does this guy is really a prince-like such as Ruki expect?

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.

1-3) Gaten na Aitsu
The son of the owner of a construction firm is harassed by his seniors in school. His father's live-in worker happens to pass by while he was being assaulted... Story continues in act 4 found in volume 1 of Play Boy Blues (chapter 5).

4) P.B.B.
Shinobu and Junsuke are still living together even though Shinobu quit being a host. Something starts to change between their relationship... (this is the first act of P.B.B. and the story continues in chapter 1, volume 1 of Play Boy Blues).

Ikehata Shino was raised as a kuniochi, a fearless male ninja who uses sex to get information from men. Since he's a guy Ikehata never thought he'd use his skills, until he met the cool, handsome Andou. But no matter how hard he tries, Ikehata can't seem to get his man...

From ShoujoMagic:

As the substitute for a teacher on temporary absence, Shibata Seiko is now the teacher of an all-boys' school. As she just made up her mind to be a fantastic teacher, a man has come into her life and took her as his 'sex toy'?! And the man is actually a teacher from Seiko's school!?

From Blissful Sin:

1) Master and Dog
University student, Uehara Yuuji, is an earnest guy with slight masochistic tendencies. Yuuji also happens to be totally in love with the cold, glasses-wearing Tatsukawa-Sensei. Ever since he first spotted Tatsukawa-Sensei, he confessed his feelings time and time again only to have the anti-social Tatsukawa-Sensei refuse every time. “That’s it! If I’m not human, he will fall in love with me!” Sensei then orders the dog cosplaying Yuuji to do what?

2) Spoiled Guinea Pig
When Kurosawa's beloved sempai comes to freeload at his house, how long can Kurosawa hold out? When Kurosawa comes home to Sempai in a bunny suit, he nearly loses it... but what about the next morning... Sempai is has fur?! Smex ensues.

3) Secret Love Lesson
Home-tutor Asato-sensei and his beautiful student Ren have confessed their feelings of love for eachother, and are ready to get their pants down.... now the only question is: Who gets whose ass?


4) Feverish Eye complex
After two years of being an extra, Yuzuru begins "secret training" with his new manager, hoping to become a first rate actor. (p.s. "secret training" = sexyness~~!)

5) Love-possessed Boy
Lazy protagonist is hot on his soccer-crazed sempai! Is there any way for him to capture sempai's heart without joining the soccer team? ...How about some love potion ❤ and maaaaybe an aphrodisiac?

6) Drown in Love
Lil' cousin in love with big cousin. Big cousin is defenseless and touchy-feely... can lil' cousin take much more?!

7) Triangle Love
Strong and impulsive Hoshino Seita; Tall, beautiful Shinosaki Eiru; and finally, smart but shy Houyama Riku. A pure (lol) love story of the three classmates.

8) Awkard Kiss

9) Number Up! Split Boy

The main character finds his possessions "abused" by some unknown person until he finally caught the culprit... masturbating to them?

From VIZ:
In company-owned rabbit-hutch apartments live tenants who can't afford to live anywhere else, and the apartment complex in which high-school girl Hatsumi Narita lives is ruled over by the rumor mongering, self-righteous Mrs. Tachibana. Get on Tachibana's bad side, and life becomes hell. When Hatsumi has to buy a pregnancy test because her popular sister Akane's period is late, Mrs. Tachibana's son, Ryoki, who used to bully Hatsumi as a kid, promises not to tell the world about Hatsumi's secret, only if she becomes his slave. Suddenly, Azusa Hatsumi's protector in their youth, reappears to save her again! He's moving back into the neighborhood! Despite the budding romance between Hatsumi and Azusa, Ryoki has control over her through the secret that could ruin the lives of everyone in Hatsumi's family, and he hasn't forgotten who his slave is.

Yuzuru is a fifteen year old girl who is attending her first year in Houjou Academy. At her summer job, she met a troublesome rich boy, Renge Kai, who is attending the same school as her. Kai is part of the Kugeka, a class opened only to the rich students of Houjou.
At the end of the summer break she finds out that she has become Kai's "Honey". This nickname is given to all the students from the regular class choosen by the Kugeka to become their assistants, so that the rich boys can be successful without any problem. The up side to being a Honey is that all their school fees will be taken care of.
Although Yuzuru's family has some financial problems, she doesn't want to accept her role of being Kai's honey. But the only way to quit is to leave the school... What is she to do?

Japanese yakuza clan heir Ranmaru just got married on a lavish cruise ship, but things aren't as they seem. The marriage is just for the appearances, and he ends up getting drunk and spending the night not with his bride but with the sexy ship captain. When the two men meet again in Italy, it is the start of a spectacular love story.

Includes an extra story called Koi no Annainin (The Guide of Love).

From Nekohana:-
Meet Izumi and Tachibana. They're right in the middle of a very hot and heavy romance. Seems normal right? Except Tachibana is a teacher at Izumi's all girls high school. Calm and collected Izumi is part of the student council. Tachibana is lecherous and is always trying to find a way into Izumi's uniform. See if they can handle their hush-hush relationship and themselves.

1-4) Ikenai Otoko
Ryou was dumped because of his lousy sex techniques and in order to improve his skills, he turned to JS Pro, a company full of handsome men. His debut as a seme was a complete failure! He decided to challenge the uke role by teaming up with Tatsuya, a man he admired, however…

5) Take Love Easy
The first encounter of Shino and Josh!! "Shino ~ The person you saw in the video wasn’t the real me… Would you let me hold you and show you the real me?" "Josh ~ Is my roommate truly the actor in the gay video that I fell in love with!?"

6) Ikenai Invitation
The extra chapter features Iijima from Rumble Rush.

Collection of short stories:

Koi wa Tenka no Mawarimono

Ikenai Candy Love
Satoko has suddenly been informed by her irresponsible boss that she’ll be fired soon and only has one more month before she is kicked out. She tried to reason with the company's number two, Tanigawa-san for some leniency but the cool yet quiet Tanigawa just agreed with the boss. But on her way home from work, Satoko found Tanigawa in the midst of something naughty and he finally confesses that he’s a sex addict! Will Satoko now use Tanigawa's dark secret as leverage to keep her job? Or maybe she wants to be a part of the naughty deed herself!

Katekyoushi no Okotowari

Honey-Comb

Nagisa no Shy Boy

1) Ijimetaihodo Aishiteru
Takashi has been bullying Haruki since they were children. But he's an idiot, and Haruki always manipulates him. Will these two ever sort out their feelings for each other?

2) The Fox's Wedding
The Fox's Wedding- Tohru has just quit his job, broken up with his fiancee and moved back home. And it's all because of his supervisor, Hanao! But Hanao is more than he appears to be...

3) Foreign Culture Communication
A historical story! Commodore "Just call me Darling," is new to Japan and is given a young, beautiful and incredibly naive translator named Haneda Takayuki. Darling is smitten with his "Honey", but will the culture differences be too much for them?

4) Little Lost Lamb
Kamiya Inoru's parents run a Catholic church (?) and he helps out by listening to confessions. When classmate Shiba Youichi comes in and confesses that he's in love with his classmate, Kamiya, the priest substitute can't resist seeing how far Shiba will go for forgiveness...

5) Educational Affection
Student Ogawa has changed lately since his father remarried and he aquired a new stepbrother. Both basketball team coach Koga and school doctor Takamura are concerned about his home life, but when they find out what Ogawa's brother's been up to will Koga be able to keep his cool?

The main character is a girl who everyone mistakes for a highly experienced flirt as she gives the most advice to girls on their relationship problems (and because of her cute looks) The truth is, she's no more than a whimpy novice who hasn't even experienced her first kiss yet! (Credit for her advice goes to teen magazines and much research) Her pent-out frustrations were overheard by the school's most outrageous flirt and those two strike up a deal for her to take up lessons to advance in experience...!

Jounetsu Kakumei
From Nakama:
Goutokuji's problem is this: he goes on a rampage every time he gets excited. When it comes to doing H stuff, he might hurt his loving lover, Kitami! Although he desperately holds his passionate heart in check, one night, Kitami confesses that he wants to do it with Goutokuji!? A state of emergency appears for sexy salarymen!

Rainbow Record
The outgoing Takashi and the shy Asou are co-workers at a record store; but they are also lovers. Takashi is a passionate fan of the rock band Jetnumbers; is his passion for the band deeper than his passion for his lover?

Song of Beginning
Kentarou has been living with the writer Kazuki for more than a year; from the beginning it was always Kentarou that chased after Kazuki. Kentarou cannot stand feeling unloved anymore, and moves home to his parents. But is he really unloved?!

Mayutsuba After School
Kunikome is a soccer-head... all he cares about is playing soccer. When his mom finds out his grades are in the single digits, she signs him up for an intensive after-school tutor class. Kunikome and his teacher have friction from the first class... but then one day, something happens that makes Kunikome study like crazy to get revenge on the tutor. But is his motivation really revenge?

Extra
Extra for Jounetsu Kakumei and 4 panel extras for the other three stories

1-2) The Queen Majesty's Ninja (Joouheika no Oniwaban)

3) The Queen Majesty's Favourite Thing (Joouheika no Daisuki Mono)

4) The Queen Majesty's Lover (Joouheika no Koibito)

5) The Queen Majesty's Birthday

6) The Queen Majesty's Tears

From Shoujo Manga Maniac:
Ruho Miyatsuki wants to fall in love, but she is totally unable to! One day she discovers a club that will help girls with any problem. There she meets three hot guys... Will she be able to be cured and find her prince?

Naeko is a divorced woman working at a bridal salon. Although her ex-husband and boss, Souichi, approaches her for reconciliation, she consistently refuses. Naeko wants to find happiness for certain next time, so she is cautious when it comes to falling in love. Then one day she meets an extremely gorgeous boy, Ouji. This would create a drastic change in her fate...