Yamada, Yugi

Compilation of 7 short stories:

1) Love Affair in the Afternoon
College student takes over a tutoring job for the friend he has a crush on.

2) I don't mind it if You are a Man
College students/neighbors are (only?) sex friends.

3) Love's Worries
Ex-lovers from their student days are reunited.

4) Kana and Patience
Divorced man cheats on his new lover.

5) Why there is no Ice Beer
Younger co-worker always hangs out at his sempai's house.

6) Bring Me to the Edge of the World
An odd 17-year-old electrician puts in an air conditioner for sexy businessman.

7) Spinning World
Sequel to Bring Me to the Edge of the World. 

(Source: MangaUpdates)

Yarashii Hirusagari

やらしい昼下がり

Kujou, Aoi

Hiroshi and Takuya have been childhood friends forever. When Takuya asks Hiroshi to be more than friends, will their friendship be able to withstand? Or have they always been soul mates?
(from B-U)

Akai Koi

Enomoto, Nariko

Miwa confesses his feelings to his friend Katou, but in response, Katou introduces Miwa to his gay friend Hashina. Miwa is shocked, and rejects Hashina, but that just makes Hashina fall in love creating an unrequited love triangle. Miwa finds comfort in Hashina, but will he ever be able to let go of his feelings for Katou?

(Source: MU)

Kimi no Kao ni Sasu Kage

君の顔に射す影

Fukai, Youki

A young man lives in a small town where he owns a small grocery shop and struggles through life alone with his small son. His childhood friend moved away after graduation and appears suddenly years after at the threshold of his shop , without money or occupation and puts his life to utter chaos.
(from M-U)

Kimi ga Iru Basho

The Place Where You Are

きみが居る場所

Yumeka, Sumomo

A cute 4 page color oneshot about a young man who compares his boyfriend to a frog throughout a single day.
(from Psycho Pandas)

Soshite Watashi wa Kaeru ni Koisuru

And I Love a Frog.

そして私は蛙にコイする。

Ima, Ichiko

A collected volume of Ima Ichiko's early yaoi one-shots and doujinshi, published from 1991 to 1995.

1. Itoko Doushi
2. Kedo... (However...)
3. Aibiki (Secret Meetings)
4. Kuroi Raincoat (Blackcoat)
5. Mori ni Itta Hi (A Walk in the Wood)
6. Ningyou no Hahen (Scale of a Mermaid)

Itoko Doushi

いとこ同士

Moko

My roommate, Hebio, is a snake-person. He looks and acts like a snake. Everyone says he's scary, but I... (Source: Kodansha, translated)

Hebio: Kishukusha Jingai Diary

ヘビオ 寄宿舎人外ダヰアリー

Takemiya, Keiko

Serge Battour is the son of a French viscount and a Romani prostitute, and despite his kind nature and academic talent, is shunned by his family and his peers due to the color of his skin. He begins to attend Lacombrade Academy, his father's alma mater, in the hopes that there he will find a place to belong.
 
Gilbert Cocteau is, like Serge, the orphaned son of a wealthy family, and is infamous at Lacombrade for his beautiful and delicate appearance, lack of dedication to schoolwork, and habit of prostituting himself to other students. He has no intention to connect with any of his classmates, instead devoting himself to his uncle Auguste.

Due to a shortage of living space, Serge and Gilbert become roommates even though Gilbert's antisocial nature has in the past made it impossible for him to room with anybody. Serge, being sociable and idealistic, is determined to be friends with Gilbert; Gilbert is only interested in either being able to manipulate Serge or push him away entirely. To the surprise of both of the boys, however, the two eventually form a deep, albeit generally dismal, bond that leads to a romantic connection.

(Source: MAL)

Kaze to Ki no Uta

風と木の詩

Hagio, Moto

As winter draws to a close, German boarding school student Thomas Werner dies one morning. He leaves behind a single letter addressed to his fellow student Juli that reads "Here is my love. Here is the sound of my heart."

With his faith shaken to the core by the words, the scholarly Juli sinks to the depths of despair. His cynical roommate Oscar finds himself watching over Juli's fragile mental state while keeping his own feelings for Juli under wraps. Then new student Eric enters the school - and he has an uncanny resemblance to the deceased Thomas...

Thomas no Shinzou

The Heart of Thomas

トーマの心臓

Yoshihara, Rieko

Michihara, Katsumi

Nagato, Saichi

In the future, on a distant star lives a new society. Ruled by a computer system, named Jupiter, men are divided into classes based on their hair color. The Blondies, genetically altered by Jupiter, are the highest class and occupy the capital city of Tanagura. Those with black hair, Mongrels, are forced to live in the slums, Ceres. Iason, the leader of the Blondies, encounters Riki, a mongrel, in the streets of Ceres one night and sets out to own him.

(Source: June)

Subtitles for the individual volumes are as follows:
1: Stranger (帰って来た男)
2: Destiny (命動)
3: Nightmare (刻印)
4: Suggestion (昏迷)
5: Darkness (長い夜)
6: Metamorphose (衝動の引き金)

Ai no Kusabi

間の楔

The Poe Clan: a race of undead that feeds on the energy of the living, whiling away the centuries in a village of roses where time and geography have no meaning. Circumstances lead to a brother and sister, Edgar and Marybelle, being initiated into the clan too young, and therefore doomed to live out eternity forever on the brink of adulthood, until a wooden stake or a silver bullet should cut them down. In this groundbreaking manga, through three immortal adolescents and the mortals whose lives they touch, Moto Hagio explores what it means to live and to die, to have loved and to have lost.

(Source: Fantagraphics)

Poe no Ichizoku

The Poe Clan

ポーの一族

Maya, Mineo

Once, there was an island where it was always spring...

...An island somewhere in the South Seas, with green forests and wide lakes. And mountains, let us not forget the mountains. Tall mountains with deep roots, filled with one of mankind's most precious treasures: diamonds. The name of this island is Malynera, and its king is only a child.

Patalliro the 8th, King of Malynera, is ten-years-old. From the day he was born, everyone knew he was... unusual. He is a hyper boy, with flashes of genius, moments of thoughtless cruelty, and the ability to make a bad pun out of anything. Smart, but only a child and so he often does very stupid things.

Patalliro! is his story.

He lives in a world very similar to our own, but where the bizarre is commonplace. He manages to get into all kinds of trouble, from international terrorists, to space aliens, to accidental time-travel. His first challenge as king is to stay alive, when a group called the International Diamond Syndicate decides that they want control of the Malynera diamond mines. This is how he meets Bancoran, who was assigned to be his bodyguard during a trip to Britain. It's also how they meet Maraich, who was one of the assassins sent by the IDS.

Patalliro is almost always accompanied by his army of Tamanegi ("Onions," so-called because of their onion-shapped wigs). The Tamanegi all wear identical masks, wigs, and glasses, and are known only by numbers. They are Patalliro's protectors, but protect the world from him just as much as they protect him from the world.

(Source: cathion.net)

12 Manga Like Dousoukai