Collection of tales of love between warriors. Good, solid artwork, if not the best available. Plenty of hard yaoi to go around here, too, if that's your bag.
If samurai themes appeal to you, this manga probably will, too.
by Shayne

The first oneshot, Hana Nite Sourou was scanlated by Atlantis-Dream.

From Bliss:

Arthur and Laurent were childhood friends that grew up together, but they had the difference of a noble and servant status. As they grew older, they came to understand the difference in their stations. Although both of them have affections for each other, such feelings could not be accepted...

English publication via Renta!

Nagisa was asked to become the nude model for a product, who's concept is "The Sexual One". In order to get used to his body, Fumitaka Kuga offers to help, including allowing Nagisa to stay at his apartment... for a price. Now, Nagisa must undergo rigorous sensual training everyday and must stay nude in front of Kuga.

From Evil Flowers:

1-3) Hana wa Knife o Mi ni Matou
Kako Saeki is a senior in high school. She has been modeling and harboring her love for her favorite art teacher, Enjoe. Her heart breaks when she finds out that her love is actually engaged. Now, Kako's innocent love takes a dangerous turn when she finds out who he's engaged to...

4) Yori-chan's Feelings
An insight of how Yori-chan, Kako's big sister, is thinking.

5) Beautiful World
Near the Ipson village, if you venture into the forest, you’ll meet a lonely demon. If he talks to you, he’s going to tell you your fortune, but don’t expect it to be something good. This demon has been named by the villagers “the insulting fortune teller”. One day, a beautiful red-haired girl named Alice becomes this demon’s friend. He doesn’t want to look into her future, but he might need to…

Ashihara Chihiro is a regular high school student. One day a man came to her and told her that she's actually a princess from another country in another dimension. Chihiro later found out that it was true, and in fact her own best friend and teacher were actually her guardians! Her country has been taken over by Raja, who is now king. Chihiro and her guardians come back to that dimension to take back their country. In her quest, Chihiro met other guardians and warriors who were willing to help her achieve her goal.

Daisuke Aurora works with the special division of peacekeepers in the city of Jewde, one of the largest cities on the planet. He and his android partner, Heat Guy J, team up to make sure that anything illegal stays off the streets and out of circulation.
However, their presence doesn't sit too well with the local mob leader--a ruthless, unbalanced, well-armed son of the late Don, who is out to prove that he is not too young to take over the family business. In the city that never sleeps, will Daisuke and Heat Guy J end up sleeping with the fishes?

From Loveless:

How far would you go to discover the mystery behind a smile? Kouhei has been watching Akira-senpai for quite some time. When Akira finally takes notice of him, how much of his cruelty will Kouhei withstand in order to win his heart?

The second part of the 5 short stories in the volume work Kakattekinasai!

ILDA is one of the best basketball players. He even has his own cheering section. Tsubaki finds herself staring at him while she practices her shots. But her team is not any good, and if they don't find a way to win the next basketball game, their team might get canceled!

"Do you remember, the moment your love first began?"

Two office workers who misunderstand their importance to one another, a young flautist and the woman who loves her, a rebellious schoolgirl who falls for a blind girl, two sisters who have always been close, and an AI researcher and her creation. None of these really has any 'link' to one another. The links are forged between the women in the relationships, and between them and us as we watch their love blossom into something real.

Includes:

• Kakera
Two sisters that are living in the same room. Their connection is a bit more than a normal sister-sister relationship. One of them eventually has some cruel reactions. What will be the end of it all, well read and see.

• Hearing the Sound of Bells
Hirose Tomoko, a music conservatory student, never found the time to forge new friendships because of how dedicated and hardworking she was as a flute player. Then again, she was never a social bee like her active friend and fellow student-flute player, Okamoto Hiromi. Will Okamoto-san be able to convince Tomo-chin of her sincerest intentions or will Tomo-chin spend another Christmas alone with her flute?

• Linkage

• Kusari wa Mou Iranai

• Present
Keiko looks the complete opposite of who she really is, appearing mean and ruthless while being a regular girl on the inside. Seeking asylum from both her incurable lonliness, she meets Haruka who happens to have the one defect that works in Keiko's favor...

Source: Okazu

From RebelliousArt:

Maki has a problem. After letting Wada stay at her place for the night, she can't seem to get rid of him. What was supposed to be a temporary stay is turning out to be much more. Not only that, but as a man and woman living together, there's bound to be some activity going on beneath the sheets.

The main protagonist, the shy Jun Naruse, is a rather average guy who works for a electronic company and loves to draw. He falls in love with Megumi whom he met at a shop selling drawing materials and an intimate relationship develops. A few days later the office gets attacked and when the criminal tries to shoot a little girl he saves her by jumping in front of her.

A month passes until he wakes up again and is told that half his brain got destroyed and he only survived because someone donated half a brain. Everything seems to be fine, he quickly recovers and is happy, however he begins to change... is the donated brain the reason for that? Or is it just a side effect of the medicine?

One-shots included in volume four:

• Area
• Yasokyoku - Nocturne
• Body

[From Blu]:

Shusuke has just been reunited with his best friend from high school, Atsushi, after many years apart. The problem for Shusuke is that Atsushi is his secret crush he’s been trying so hard to forget about all these years. Will Shusuke take this opportunity to finally reveal his feelings? And just what are Atsushi’s feeling for Shusuke?

From Attractive Fascinante:

Aratsuka Kaoru, a math sensei teaching in an all boys’ middle and high school boarding school, is also known as “Alaska” because of his coldness. He has never been in love before because he’s afraid to share his feelings with another. After some issues, he spent a night in the room of the infirmary sensei, Suzuki Kouta. It was the first time someone touched him. What will happen thereafter?

Junko Tachibana, a manager of the baseball club of Wakaba High School, is the Madonna of the team. Sawamura, her first love, is an ace batter.Happy and sound love story.

*Included in Aa! Seishun no Koushien

From Attractive Fascinante:

In the Royale School, because of his nice name, Ayamoji Kokuei was being targeted by a yakuza’s son, Shirogane Michihiko (real name: Kintarou). Ayamoji began to skip lessons and repeat grades to avoid meeting Shirogane. When they met six years later, Ayamoji drugged Shirogane and they got intimate. Ayamoji left after that and reappeared five years later. Would the two lovebirds finally be together?

From Tokyopop:

Chiyoharu used to be the leader of the troublemakers, until one day an innocent prank results in a major fire at the school. When his three cohorts take the blame and are expelled, Chiyoharu tries to go on with his mundane life, beating himself up with guilt. Then he meets the mysterious, muscle-man Souza of the North Wind and a ditzy self-proclaimed detective who are trying to solve the mystery behind Souza's amnesia...It's nonstop comedy and action from there!

A collection of oneshots: Story 1: Spring and Love Come Early? Ichio Tomochika, the archery club president, likes the calligraphy club member, Komada Aoba. With black hair and black eyeballs, Komada is just like a stubborn black cat. Looking at such an adorable cat everyday, Ichio hopes Komada can sense his feelings he has for him. After an unexpected kiss from Ichio, will Komada return his feelings? (From Attractive Fascinante) Story 2: The Trap of Love Story 3: I Want A Bit More Love Story 4: Youth Melancholic Story 5: While Numbering Stars Omake: While Numbering Stars Extra

From Manga Jouhou:
Takashi Sone is living on his own while he is attending college. Out of the blue, his parents tell him that his sister, Mafuyu, is moving in to live with him and that she will be attending a high school in his area.
When she arrives, he finds out that she was kicked out of her old school for getting caught making out with another girl. Soon afterwards, the other girl arrives, having thrown away everything she owns in order to run away and live with Mafuyu.

Volume 11 has a unreleated 2 chapter story at the end called Frills

From Sweet Lunacy:

Armelia is an orphan girl who sings for work. One day, she met a boy, Luce, and fell in love with him. Unfortunately, Luce was kidnapped by the notorious pirate, Scar. Armelia swore to herself that one day she would rescue Luce. But the truth is not what she thought it was...

*Includes a side story called Haru wa Sakura:

Shou wants to be a doctor, but female doctors are forbidden. Takao is a delinquent, whose bad reputation is known by many. Somehow these two people cross paths and a connection is made. Was it just a chance meeting or will something more come out of it?

From TachiNeko Guild:

Set in post-World War II Japan, this is a story of young Haruomi, an heir of the prominent Morimura family. Stripped of his aristocratic title while facing a repossession of his estate, Haruomi finds himself thrown on the mercy of a wealthy Japanese American, Tsutomu Oshio.

At first, Oshio wants nothing to do with a naïve noble. After all, he hates the Japanese above all else. Yet as the days go by, Oshio finds himself inexplicably drawn to Haruomi’s innocence. Driven by a desire to rid himself of his newfound feelings, Oshio sets it upon himself to disrupt Haruomi’s flawless façade.

Through the hope of saving his bedridden mother’s life, Haruomi accedes to Oshio’s scandalous demands to become his “servant”. Thus, Haruomi’s new life as his master’s plaything begins…

Note: It sounds like the Japanese version of this title included a separate one shot about a host club. While the version published by Enju Group does not.