A very short oneshot about a man and his maid...

From Fantasyshrine:

The so-called “Hard-boiled man” famous novelist, Takamura, came to a seaside village and encountered a youth named Midori, who bewitched Takamura with his jade green eyes. But before the cynical novelist realized it, he was dragged into a small hostel ran by Midori’s family! Later, Takamura learned that both Midori and him shared similar heartbreaking childhood experience, yet Midori never lost his faith and trust. In anger and frustration, Takamura violated Midori! How would these two come to terms with their feelings for each other?

Chapter 4 also published in Yatte Yaru, Konya! (chap 3).

From Fifay.net:

The story took place after the 1st World War (the Great War) and prior to the 2nd World War. The heir of a rich viscount was falling in love with a magazine reporter. The “heir boy” died in a house fire. Seven years later, the reporter found his “dead” lover, now a high profile male prostitute. Together, they fell into the darkness of political scandals and human smugglings.

From Fantasyshrine:

Advertisement designer, Agaki is completely unaware of his attractiveness to men. This is why he’s in bad terms with his colleague and nemesis, the ace designer Haruna, despite the fact Haruna has always come to his aid more than once. One day, Agaki stumbled across Haruna’s secret! Thinking he finally had the upper hand over his archenemy, Agaki let his guard down. Next thing he knew, he got drunk and ended up getting photographed in a compromising position. Now, Agaki has no choice but to obey Haruna’s sexual advances~

The story is about a clan of butlers that server their masters generation after generation in "special affairs" and not only in the house duties.

A shape-shifter wolf who was once a human, but became a demi-immortal when his lover betrayed and murdered him, adopted an orphaned boy, who is now a young man. They travel together, exorcising evil spirits and demons. Trouble follows and finds them often, but they always manage to come out on the other side, pretty much intact.

Collection of short stories:

1) Anohito to Nitenai Kuchibiru
Kaji was in love with his sempai for years but his sempai got married and had a child. Kaji takes care of the kid and watches him growing up...

2) Kuchibiru Kara Biyaku
Sequel to Anohito to Nitenai Kuchibiru

3) Blood
When their father dies, the rival half brothers must sort through their feelings of anger, regret, pain and desire that their lives have been steeped in thus far...

4) Kagari Oni
An exorcist solves a mystery involving demons. Not really a romance, just a historical fantasy story.

5) Datenshitachi no Yoru
S&M relationship between step siblings is taken to extremes.

6) Double Snake
A former gangster has turned into a regular office worker, but he still sleeps with his gangster lover. But one of the newbies doesn't like the fact that his favorite 'boss' is having a relationship with an office worker.

In the Crystal Harem series:

Vol. 1 - Crystal Harem
Yajima met a gorgeous young man, Ryo, when he was investigating a case. He was mesmerized by Ryo's eyes and got his badge stolen instead. Who is Ryo? What does he want? And who was the man living in Yajima's heart? The tormenting memories are coming back again…

Vol. 2 - Guren no Kusari
More of Ryou and Yajima! 3 young boys with restraining marks were found murdered and disposed off like trash. While Yajima was doing investigation, Ryou was kidnapped! Would Yajima be able to find the murderer in time and save Ryou?

Vol. 2 Chapter 4 - The Feelings of the Dog
The dog trainer Tomo is going to have to teach the new dog owner what to do from beginng to end.

- Attractive Fascinante

1) Unfinished Perfection
Shinohara Yuu is in love with his boss (Yae Gashi from Yojouhan Sweet Home), but his boss already has a boyfriend. So Kakinuma Daishi, his childhood friend, agrees to take the place of Shinohara's boss and sleep with him.

2) Present
It's Daishi birthday, however Shinohara completely forgot about it. But don't worry - Daishi will find a way to take a suitable present from Shinohara.

3) The Assistant's Love Sonata
Daishi is writing a scenario about the lives of secretaries. He uses Shinohara's office as reference material.

4) The River of Honeymoon
Daishi takes Shinohara on a trip into the mountains.

5) To Climb Love's High Mountain
Ushiie Shintarou, beloved sempai to Hokari Kei, was killed three years ago in an avalanche. Since then, Kei has returned every year to the mountain. This year he is accompanied by Kabashima, an underclassman who really likes Kei. Can Kei's heart experience love again after such a tragic loss?

6) The Smiling Assassin
Editor Michihara grows frustrated with his assistant - Tamaki - for making too many mistakes, but Tamaki always apologizes with a charming smile that irritates Michihara.

A collection of one-shots:

1) The Conquest King of a Wasteland
Azim is leader of the "barbarian" troops conquering the land. Prince Ulra from the neighboring kingdom is sent to assassinate him, but things don't always go as planned.

2) Truthful Words
Office worker Kaname's next door neighbor Shouta is a quiet high school student, maybe too quiet! After a night of drinking Kaname can hear Shouta's thoughts, and they're all about Kaname!

3) The Twin's Lover
Poor high school student Youhei lives with rich privileged twins Rei and Jin. He loves them both, but knows he can't live with them forever.

4) Garden
Young Master Masumi has returned to his childhood home and the gardener's grandson he tormented as a child. But Kengo's grown up.

5) The Love Call of the Master
Yuuki wakes up chained to a bed! Sold to a pervert by his father, will Yuuki succumb to his Master?

6) Paradise
Contiuation of chapter one.

A story about the Sexual Harassment Punisher, Sakakibara, and his assistants - how they ‘punish’ those around them. Some comedy and BSDM themes, plus drama and action.

1-5.
Togawa Ryouji is the new sales employee of a Toy Company. He and Kairou Reiji came into the company at the same time. They are just like water and oil and can never get along with each other. The management wanted them to cooperate to do sales out in the streets. Kairou always annoyed Togawa with his words during work. But when Togawa saw the nude back of Kairou in the changing room, he actually had a nosebleed!?

6. Sakura Ice Beauty
Fushijiro-sensei is known as a cool beauty, but playful sensei Takatou always manages to get under his skin. With Fushijiro's feelings for the older man tied up in a past incident that Takatou doesn't seem to remember, will he ever be able to sort them out?

7. Serious Love
Date is considered tight-lipped and is often given the tougher jobs as an enforcer in the Senwa clan. But when he's told to guard a beautiful young boy who seems determined to seduce him, Date may have met the job he couldn't handle.

8. The Aroma of Temptation
Researcher Yura's failing miserably at his pheromone project, and letting down sweet, supportive Mikimoto from marketing. Maybe Yura just needs some inspiring animal attraction...

9. Extra
In this twisted Little Red Riding Hood, exactly who's going to be eaten up?

Series of short stories revolving around a poor builder and a wealthy proprietor, including:

1) Sweet Home
Mizuho is living on the edge of poverty in a 4.5 tatami mat room (7.5 square meters) due to his family's debt. One day he collapsed from hunger and is carried home by his unruly coworker Yae-san. Is the willful Yae truly what he appears to be?

2) Sweet Prisoner
A misunderstanding leads to S&M.

3) Sweet Worker
A coworker takes an interest in Mizuho.

4) Sweet Memories
Mizuho's old apartment is being torn down.

5) Northmen
Takes place in the time of the Vikings.