Inuyashiki has a family, a wife and two kids, none of which care about him. When he learns that he has only three months to live he realizes that the only one who will miss him is his dog. Shortly after this realization he is killed in a crash landing by aliens. He is rebuilt by them as a machine with a human exterior. How will his life change now that he isn't human.

This is a manga with several oneshots.

Story 1: Pure Love Strip
Story 2: Beautiful Beast
Story 3: Morning Waking Kiss

Story 4: Daisy by AMANE Yuko

Story 5: Lustful Darling
Story 6: Love Princess and W Prince
Story 7: Yokujyou Nyan Nyan (Alluring Nyan Nyan)

Who do you think lives next door? A college student?
A secretary? A foodie? A quiet sort?
Or a killer?

Humanity's peaceful days all at once transform into an unspeakably odious hell.
The sudden invasion of wasp-like insects, along with gargantuan "dolls" wielding their enormous alien weapons, annihilating everyone in their path.
In the middle of the chaos, high school first-year, Iruma Ikaruga, fights to save his best friend and his beloved senpai from the dolls' assault with an unyielding spirit.
However, all that awaits him is despair.
Just what are the enormous puppets known as "Dolly"after?
What fate awaits Iruma?
The curtain has risen on humanity's "puppet show" of unimaginable despair, and the battle for survival has begun.

From: Easy Going Scans

A continuation of Brave 10. The main protagonist is an Iga ninja named Saizou, who meets an Izumo priestess and protects her on her short journey to Sanada Yukimura. Sanada Yukimura is a powerful warlord in the Sengoku era. Sanada wants to gather 10 warriors, a party unrivaled in skill and power, to set his still secret plan into action.

Marriage is in shambles. But still their pride stops them from seeking each other. Thats when both drift out to get the taste of some 'Drugcandy' (adultery). A tale of two people exploring out of their relationship.

Jang-Mi and Taebong's long-time friendship is put to the test after they both sleep together for one night. Is this love or just sex? Read H-mate ( Hメイト, H메이트) by Turtle Feet now!!

Maybe you'll like: 
+ Brawling Go Manga
+ Skill of Lure
+ Sweet Guy
+ H Campus
+ Yahalue
+ A World That I Rule

From Yaoi Is Life:

Saichi and Kotetsu are drawing manga as a team while living in extreme poverty. At loss for an idea, both of them decided to write a “real BL” based on themselves! They rise to be a star in the BL world, but…?!

"The other short stories within explore a schoolboy crush that turns into something more, an antagonistic relationship between a wealthy heir and his crush, and the love life of Usaki, the editor of Saichi and Kotetsu’s stories" (June).

From MangaHelpers:

Shou lives out in the country. He has a big crush on his childhood friend Sora, but is afraid that she thinks of him only as a little brother. One day, Sora announces that she was abducted by aliens. Later that day, Shou confesses his feelings for her and she dies shortly afterward. Shou is still in shock from her loss, when an alien girl named Lila comes down from the sky. She has a disk that contains a brain scan of Sora, and she can run Sora's personality in her own body. She also wants to have a child with him. Will Shou be able to cope with all of these sudden changes, and will he be able to keep Sora with him after all?

One social outcast unleashes a cross counter that will change the world! A raging storm of fighting action!

Shotaro Mitarai has given up on life, but when he visits the great forests of Mt. Fuji to end it all, he's attacked by the Suicide Hunters. On the tip of a gruesome lynching and faced with a tragic death, the seeds of rage sprout within Shotaro! What course of action will he take from within the inferno of anger?!

Awaken! Stand and fight! Let the gong of your soul sound true!

The spin-off of the popular fantasy manga "Fairy Tail". Consists of 3 volumes

Volume 1: Kengami no Souryuu / Twin Dragons of Sabertooth
Sting, who became the master of Sabertooth, Rogue, Yukino, and Minerva together perform jobs together, but...? What is the danger approaching their guild and the whole continent!? The episode that was not shown in the original story is now being told!!

Volume 2: Rhodonite / Road Knight
Spin-off of Fairy Tail following Gajeel and his past.

Volume 3: Raigo Issen / Flash of Great Lightning
The story centers Laxus Dreyar, the Thunder God Tribe, and the time they were affiliated with Blue Pegasus.

Meguro Mito has always been made fun of for her chubby appearance. Her sole happiness is discussing her favorite role-play game with her two best friends. One day, while she is being bullied, a handsome classmate saves her. Is this the beginning of her first love?

From Manga Box:
One day, a yakuza gang member is attacked in Roppongi, Tokyo. This is only a prologue to one man's revenge story, triggered by the events of twenty-two years ago. The flames of revenge burn in the darkness of the city. By the author of Hitoshi Tadano, Chief of Special Operations, Kimio Yanagizawa.

Tegami Bachi (or Letter Bees) are couriers that deliver important letters and packages throughout the land of eternal dusk, Amber Ground.

The story revolves around Lag Seeing, a young boy who was born on The Day of Flicker, 12 years ago when the man-made sun went down for unknown reasons. The manga follows his ambition to become a Letter Bee and how he follows the path of his idol Gauche Suede who suddenly went missing one day...

Mori, a cheerful playboy in his sixth year of college, has just fallen in love with a high school girl named Hoshi. From that starting point, Mizu no Iro Gin no Tsuki portrays the relationships among Mori's friends and acquaintances.

Vol 1 contains work originally published in 1998-2000, which was previously collected into a 2000 tankoubon entitled Mizu to Gin. Vol 2 contains work published in 2005-2006.

From JanimeS: Princess is a very straight forward and sad series. This series is full of romance and politics. The background is an unknown medieval era where there are three countries. Among the three countries, there is an island country called "Ramira". The empire, Ramira, is where most of stories will unfold. There are generations of princesses, and the first 27 volumes set the story for the eventual regaining of Ramira by the greatest Empress of Ramira, Preia, who was beloved by the people and had many loyal men under her.

Even if people are born with super powers, they must serve as sidekicks of superheroes in order to become superheroes themselves. Lamia a.k.a Dream Girl has the power to make people fall asleep. She is the sidekick of Darkslug, who is not a great hero compared to his reputation. One day, Dream Girl and Theo work together to get rid of villains and save the world.

This manhua is a collection of short stories by this author. It is almost similar to the German Brothers Grimm's stories. However, these hold no morals but are more of a twisted outlook on life.

Short story about a girl with a monster face