1. Hen Koi no Specialist

2. Oyasumi Manatsu no Gatsu

3. Koi no Jitsuryoku Ai no Sainou

4. Dokusen Happiness
All Sonoko wants for Christmas is to spend it with her boyfriend. However, it seems that he can’t spare her a few minutes on Christmas, as she’s not his top priority. To make things worse, she’s starting to feel more and more drawn to Takatsuki, a classmate who once confessed his feelings to her…

From Evil Flowers:

How many doors must you open before you can reach heaven? Is it after the next one, or the one after the next one?

In a school where after school activities are mandatory among all students, Hajime and her friend Sayo come across a new club that they have never seen before. The club is called "The Cultural Activity Preservation Club." The two enter the room to find all kinds of analog jobs and activities, such as handcrafting mats and toothpicks. This is a unique cultural manga mixed with comedy so as not to bore you, this is Double J!

A touching story of a doctor who wanted to help people even though he became a vampire.

In an future apocalyptic world the church once again has regained power, but not to do good, but to serve evil. Cloned priests, called "dragon fly" of the kirihito church use their power, however a shinigami has appeared to stop them and reclaim her past...

The story follows Erina's route in the Dracu-Riot game. Erina is a foreign vampire from Russia and she is very ecchi, her conversations often involve ecchi stuff which makes Azusa really edgy and Yuuto nervous.

A collection of Dragon Kishidan oneshots and side stories:

One Day, Another Day
Set before the end of the series, it's basically a side story of a day in the Dragon Castle, kind of in Zoma's perspective.

Juuji ni Hikaru Hoshi
Takes place before the events of the actual series. This is a back story that shows how Lykouleon and Raselane met, introducing Lykouleon's uncle, Fieruto.

Mamono no Mori no Kioku
Another backstory that delves a little bit more into the relationship between Bierrez and Cesia before the series started. It also shows how Nadil became the demon lord.

Happiest Children
This actually has three little side stories in it. The first one is about Rune's dream about everyone dressed in drag, the second is about a little adventure that the three dragons go on, and then the third is like a day in the life of Alfeegi, Ri-ma, and Duma.

Crescendo
Backstory about how Lykouleon and Kaistern met and how Kaistern then became the Blue Dragon Officer.

CONFESSION - Thats
This is basically the backstory of Thatz and how he knew about Rath's little secret.

CONFESSION - Rath
Basically telling a lot about Rath, particularly his relationship with Kaister.

A collection of mildly ecchi otokonoko-styled stories focusing on crossdressing high-school boys and the boys who like them, mostly from the men's magazine Oto Nyan. Some of the stories are continued in Hiriajuu Shuudan ga Classmate o Josousasete Kanojo ni Shite Mita.

1-3. Raising Decoy
A boy helps his classmate go undercover in drag to catch subway gropers, and finds that he looks disturbingly good in a dress....

4. Ato no Matsuri (retitled Spilled Milk in the English edition)
A group of male students, having failed to get girlfriends, are becoming desperate; what will these "innocent" boys resort to?

5. Tenshi no Houbutsusen (Parabola)
Baseball-themed romance short.

6. Actress
A boy joins his high school's film club to meet the actress from their amateur film, but gets a surprise...

7. Shishiza no Boku to Natsu no Yozora (retitled Leo and the Night Sky of Summer in the English edition)
The president of the school astronomy club wants to catch UFOs.. maybe some "sexy female alien" costumes will help?

Based on Massively Multiplayer Online Game (MMOG). The beautiful Goddess Altea, creator of the tranquil worlds of Lagendia, plummeted into unconsciousness after being poisoned by her jealous, evil sister Vestinel. The poison can only be neutralized by an antidote made from the source of the poison itself - Vestinel's magic grail - which has disappeared into Lagendia along with sinister Vestinel herself. Able to communicate to her people only through dreams, the Goddess Altea calls upon the Heroes of Lagendia, via all-knowing prophets, to find the grail and save her from her eternal slumber. In their quest, the bold warriors must comb the lands for enchanged Power Stones, which allow them to speak with the prophets and unlock the will of Altea through her dreams. But the hunt for the Power Stones is not for the meek, as since the Goddess Altea's poisoning, the formerly peaceful lands of Lagendia have become home to throngs of deadly dragons bent on thwarting the grail's discovery and keeping the land in despair.

From Iskultrip Scans:

In order to restore the Great Dream Tree of Elfland to life, Kiki, a mare, has to eat bad dreams that plague people’s hearts and foster good dreams so that they sleep well. Aided by Gilly, the tree guardian, and the garden elves, she wanders the human world. However, the world is a dangerous place...

Volume 1: Dream Eater
Volume 2: Dream Eater - Saigo no Yume

This story acts as a sequel to the original "Dragon Quest Monsters" game for the Gameboy. Kurio, a child who wishes to be a hero, is thrown to a world where monsters are found all over, and is asked to become their new Monster Master hero since the great tree is withering, the monsters are going berserk, and Terry, the previous monster master, has gone missing.

The year is 2029, and Hibino is an ex-police officer who now makes a living running errands for the leader of what appears to be a high-end gang. But how do a civil uprising in Niger, the attack on a radical military figure in Japan, and a bone-marrow thief tastelessly dubbed "The Vampire" connect Hibino to the mysterious white-haired boy who is forever confined to an enormous library reading through scores of books?

From Sugar Oasis:

Riria is a middle school girl who is absolutely, hopelessly in love with the guy who lives next door. The only problem is that he is a LOT older than her. His name is Rinpei, and he is 26 and a businessman from a rich family. Although he is nice to Riria, he (rightfully) considers her just a kid, and just treats her like a friend. Poor Riria, she loves Rinpei so much, but he is so much older and doesn't see her as a real woman.
To solve the age problem, Riria transforms herself into a totally different person, trying to make herself look older. Now is the test, she decided to find Rinpei on the street and see if she can fool him with her 'disguise' into considering her a real 'woman' and see how he likes her then. Amazingly enough, things go well. Riria, in her new persona manages to make quite an impression on Rinpei! In fact, he really likes her!

From Day of the River: “The person who killed my father...is among these people.” 15-year-old Kotobuki Ringo reunites with childhood friends she hasn’t seen in eight years since her father passed away: the calm and soft-spoken Shiran, the strong Kujyaku, the kind Masaki, and the energetic Gogyo. They were all students of Ringo’s father and all have amazing abilities of their own. Ringo comes to live with them at Shiran’s villa, but she’s not staying with them just to rekindle their friendship... She believes that one of them may be her father’s murderer, and she will stop at nothing to find out who was behind her father’s death.

From Yuuki Megane Scans:

Shuuhei, Harumi and Daiki start their second year of high school with an absolute goal: Getting at least two new members for their swimming club to keep its position as a club. This is the daily struggles and shenanigans of a high-school boys' swimming club!

In the Danna-sama to Mitsugetsuchuu series:

V.1 - Danna-sama to Mitsugetsuchuu
Sakuya and Shuji-san are enjoying their 'newlywed' life to the fullest. Although Sakuya was brought up as a 'young master', he's still wants to try his best for his loving husband Shuji-san.

V.2 - Toro Toro Honey Hen
Shuji takes Sakuya on a onsen honeymoon trip; when they get back a servant from Sakuya's house has found them. Will they be able to keep living together?

When Yuko randomly runs into her aloof classmate Arisa one day, she's delighted to get a chance to get to know her! She cheerfully accompanies her to Shibuya, where Arisa says she has an important job that only she can do. As the situation turns violent, Yuko realizes that the mysterious Arisa has a lot more secrets than she could have guessed. Is Arisa involved with the urban legend of the "Execution Girl," who punishes evildoers?

From DrMaster:
After his mother's death, Kuro Takagi transfers to Yotsuji Private High School where his father is the proprietor. But Yotsuji is no ordinary school. It holds a strange rule of “No students on campus after dark!” On his first day of attendance, Kuro and his classmates inadvertently break the school’s highest protocol and find themselves victims of a faculty zombie attack. Although they manage to narrowly escape, this is but a prelude to more encounters with the undead, especially after Kuro discover his own blood-ties and latent zombie abilities. From there, it's full steam ahead as this dark and intense action/comedy shifts into high gear.

Yae takes a part-time job at a newly opened cake shop, and has less time to spend with Nao. Visiting Yae at the shop, Nao meets the pretty older lady that manages it. Nao can't help but feel anxious...

First issue of a canceled series; collected (in thumbnails) in Blame and So on (Artbook)