It's 2071 and Earth as we know it is in ruins ruled by Wild Gods, the "Aragamis". Set after half a year in the Original Game Story, Kagami Ryo, Leader of Far East Branch's Team One, travels from Finland to return to what was formerly called Japan.

Mist Story is a one volume horror anthology by Go Nagai from 1992.

From: Easy Going Scans

We find Chunwha in a world beyond his own. There he will struggle to find his own purpose among the many inhabitants of the new world including elves, dwarves, and even mages! As we watch him grow in strength and spirit, the manhwaga creates fascinating characters out of his companions and adversaries and moves past the simple concept of the antagonist vs the protagonist.

To find out what fate has in store for our hero, follow Id in a fantastic adventure, exploring a world where anything is possible.

From MangaHelpers:

Shibata Youichi is an ordinary high schooler, but one day he runs into a mysterious heroine! The cute girl knows his name, and (as in a stereotypical anime) she's an alien who needs him to help save her people! Soon enough, Youichi finds out that this situation was too good to be true... The girl, named Kyara, does represent aliens, but her people are actually interested in Japanese manga/anime/game culture. They want to use his home as a base and his brain as a measuring tool of the level of appeal of their heroines! [tethysdust]

Kali grows up through the deaths of her close ones. Set in a historical-like world with monsters known as "slave ghosts".

After being coaxed into crossdressing by his older sister, Hikaru Futaba ends up participating in a girls-only singing contest under a female disguise. Soon after his performance, Yuuto, Hikaru's friend, falls in love with his female alias. In addition, the class representative Sumitani-san also falls for him after discovering he crossdresses. How will this love-triangle play out?

From: Easy Going Scans

Side story of City of Darkness written by the same author, but drawn by a different artist than the main story.

A spoof of the life of Nobunaga.

A sequel to Ninjaman.

Set in the Daiouyama Prefecture High School, a school with over 3000 students. The Student Council Empress decides that small clubs are a blight on the schools resources, and that they should be forcibly merged into one club. Which of course throws four very different clubs and girls with different interests into the same room…

The boy who had everything taken away by the Novus Orbis Librarium which monopolizes power and governs humanity, obtains absolute power and declares war against the world. The story behind the possessor of the Azure Grimoire, the "Grim Reaper" Ragna the Bloodedge's battle begins!

Masato kyobashi suffering from a illness which does not allow him to do any strenous activity becomes the manager of the school's swimming club.
It is a manga about his everyday life in the swimming club surrounded by beautiful girls.

From the manga habit:

Shiina is a serious man who has wanted to be a zoology professor since he was a child. He was infamous for always carrying around many massive books. Now 28 years old, Shiina is an associate professor who works diligently to train future zoologists at a university while looking after his childfood friend, Chitose. Chitose is also an associate professor in the biology department and apparently always walks around with penguins. So he is quite infamous in his own right. Chitose has a weak constitution and always needs Shiina’s help. This manga focuses on the trials, tribulations, and future of the young associate professor, Shiina.

From MangaHelpers;

One day, Bianca, Rosso and Nero visit the site where a dragon presumably was defeated at the Dragon Hill Ruins based on a map. Upon closer inspection of the map, Bianca notices a mysterious spade symbol and the word "DRUMP" written across the map. They find where the spade symbol is located, dig in its spot and find a mysterious object that causes a change in Rosso. What is the object, what connection does it have to dragons and what does DRUMP even mean?! [c_k]

In the fantasy world of Chorolodia,there are two jobs that are the most famous among the people.Those are the one of the farmer and that of the legend! A certain young man by the name of Aenu Kiratori whose finances are getting worse and worse as time passes,as he has no other option,he decides to start working as a legend.The story follows his adventures as he enters the business.

From Tokyopop: As punishment for being late to class, Kanata has to ring a bell in an old, deserted church near his high school. When the floor breaks, Kanata falls into a vast room, where he discovers a coffin--and inside, the body of a vampire. The vampire rises, killing Kanata. But Kanata's soul is saved, and when he later meets the vampire, they realize that they are bound to each other through a magic spell: If Kanata dies, the vampire dies, too!

From Twisted Mist: A timid boy named Zao Ci, which was accepted by Mateliya, a Demon as her "number 2". He was always called an idiot by Mateliya. He is so weak that he could not even pull the trigger of his gun. But, who actually knows that he had a special power within him, which only Mateliya can control. This begins the adventure of the contract of the boy and his master to save others.

N/A

Resource depletion, environmental contamination, desertification, and foolish wars. Mankind willingly walked along the path of annihilation. And at the end of that path, those who survived relied on the power of science and conducted endless experiments to obtain the valuable source of life. As scientists are exploring the desert's fallout areas, a child-like being is found naked on the ground and was brought into an underground survival refuge. As they analyze the child, what will they discover?

Shira, 17 years old, a student who loves Manga and consider it as his only friend. He always gets involved in fights and loses them. Oneday, on his house balcony, he sees meteors heading toward him. That was the beginning of his adventures along with his 'Friends' in order to rescue the world from the 'New Terrorists' organisation.

Anan and Minmi lived in a laboratory as small children, where scientists experimented on them and gave them special powers. One day, the professor helped them escape, out of guilt from what he had done to them. The two of them continue to hide ten years later, certain that if their powers are exposed they will be captured and returned to that hell.