From DarkoNeko:

This is a post-war world where human-shaped weapons called scabbards exist. Cuifa and Livia are traveling government agents looking after the declining scabbard population, checking on their living condition, potential abuses, and the worthiness of their masters.

A scholar with absolutely no desire to study met a mysterious girl called 'Miss Ugly' who had no memories of her past. She was resigned to her fate of being destined to be sacrificed to the Huang Deity, but the scholar was determined to save her.

beginnning with the Bloody Valentine War between Earth and the colonies,On one side is the Earth Alliance, and on the opposite is the space colonies that form ZAFT (Zodiac Alliance of Freedom Treaty). Mankind is divided over human genetic engineering, with normal humans known as "Naturals" and the genetically altered humans known as "Coordinators".While ZAFT has a head start on mobile suit design, the Earth Alliance quickly catches up with its five prototype Gundams. With ZAFT having stolen four of the prototypes, young Coordinator Kira Yamato pilots the GAT-X105 Strike Gundam and is forced to fight his old friend Athrun Zala. Little do they know that there exist sinister forces working to bring about events that go far beyond their worst nightmares. -Taken From Wikipedia

From Aerandria Scans:

During the time when the world is full of barren lands and big ships sail out to the vast oceans, a very rare type of sub-human--mermaid--was born. Normally, they have white hair, but only in water does the color change. Among the aristocrats, they are traded for large sums of money. Hisui is a merman with scarlet hair, and he's kept by a lord. However, as he's stolen away by the pirate Ikuta and gains freedom, they start their journey together!

In the wilderness of Hokkaido, the Ainu people of Japan live in harmony with nature. Kotan Nakamura is a young Ainu boy living peacefully until he meets a tiger one day. This tiger, Dan, has escaped from a train that was carrying him to a zoo. Together, they discover mysterious ruins hidden underneath the ground.
Within the ruins, Kotan and Dan discover an old man named Upopo living there. He tells the boy and the tiger about three keys to a fantastic treasure. As it so happens, the evil Sekkoku Kou is also searching for the treasure and shoots Upopo. Before he dies, Upopo gives one of the keys to Kotan.
Now, Kotan and Dan find themselves involved in an ugly battle as numerous villains track them down to try to get the three keys so they can claim the treasure.

Mishiri Lionflame has always tried to escape his home town in the sky to go and explore the world below him, well today is his lucky day.....or is it? with the help of Yellco his flying carpet and a good luck charm his dreams come true but thats just the beginning of Mishiri's problems.

After a long and treacherous journey, our Hero finally arrives at the Overlord’s castle only to find himself being asked for help. The Hero explains how the war that the demons have brought upon the humans have killed thousands and put more in misery. The Overlord however argues that this war has made the human society band together as one and showed empirical evidence how it has increased population, increased production, boosted economy and improved society overall. Furthermore, she explains to the Hero that ending this war will result in a civil war that will produce more bloodshed than there ever was. The Hero, convinced that the only way to bring peace, relatively speaking, is to join forces with the Overlord, agrees to help with her plans!

The main series of The Doraemons. Telling about the advantures of The Doraemons.

From MangaHelpers:
Suddenly finding himself in the Sengoku era, regular high school student Sagara Yoshiharu is about to be killed in the battlefield. He is saved by none other than the man who later becomes the infamous Toyotomi Hideyoshi but at a cost to his life. With history completely changed because of Yoshiharu’s actions, he tries to make things right again but it seems that history is taking a different course than the one he learned in school. Oda Nobunaga is now a brilliant but young girl named Oda Nobuna. Yoshiharu starts working under her command to bring back history to its correct course and find his way back home to the present world.

Original webcomic A story about a guy who lost everything, and a girl who had nothing

This story describes a man named Nan Gong Sheng who gets caught in a terrible conspiracy while trying to learn about his life story. Forced to stand against his people, he starts to try and find a ancient book called "Tian Yuan Ce" in an attempt to stop a terror plot. While following the world in the mysterious book, characters with mysterious powers started emerging. Feelings within the demons have also started arising.

From: Easy Going Scans

The Sun Knight is a man who has shining golden hair, sky blue eyes, a compassionate nature, and a brilliant smile. He is the spokesperson for the God of Light, the captain of the Twelve Holy Knights, and (some say) the man closest to perfection. Beneath the veneer of the Sun Knight, however, lies a very different sort of character...

N/A

Fonons. Essential components of all matter on planet Auldrant. Ages ago, a new type of fonon was discovered—the Seventh Fonon. Its discovery threw humanity into chaos, for if one could use the Seventh Fonon, one could learn the future. Wars over the Seventh Fonon raged across the lands, ending only when the miasma—a poison from within the planet—covered the entire world. This is when Yulia appeared. A fonist skilled in prophecy, Yulia saw thousands of years into the future and foresaw a way to seal away the miasma. With the guidance of her prophecies, humanity sealed the miasma deep within the planet. Over two thousand years passed. The world is ruled by Yulia's prophecy, known as the Score. People believe in the coming “unprecedented prosperity” promised in the Score, never straying from the path set forth in the Score which will lead them to that prosperity. They look to the Score as revealed by the Order of Lorelei, the religion Yulia founded, and hold that the greatest virtue is to follow the Score faithfully. Yulia's Score tells of a young man who is necessary in order to bring “unprecedented prosperity.” His name is Luke fon Fabre. An heir to the throne of the Kingdom of Kimlasca-Lanvaldear, he was kidnapped as a child by the kingdom's enemy, the Malkuth Empire. Since his return he has been confined to his family's manor for his own safety. He has no idea of the evil that now draws close. Based on the acclaimed RPG by Namco.

Based on the PlayStation 2 game of the same name. A teenager who was orphaned as a young boy returns to the city of his childhood. Shortly after transferring to Gekkoukan High School, he is attacked by Shadows — creatures that feed on the minds of their victims. He soon discovers that he shares a special ability with other students at his new school. From them, he learns of the “Dark Hour,” a hidden time that exists between one day and the next, swarming with Shadows. He joins the Special Extracurricular Execute Sector (SEES), and with his new friends, confronts the threat of the Shadows.

One of Go Nagai's first works, this violent period piece takes place in the 1500s and stars a talented, low-ranking ninja named Shishimaru. In it, Shishimaru fights against Ginnai Doma (an immortal samurai who, despite being butchered multiple times, doesn't die) because Ginnai murdered his comrades.

Despite being set in historical times, it has time travel, aliens and the alternate universe war.

Onoda Nina is a 1st year student of her high school. She has a serious crush on her senpai, the handsome and kind Atsuhito Ogi. Ogi is the president of the ESP (Extra Sensory Perception) club, and only to win his heart she joins the club.

Turns out she has a tough rival, her senpai, Okada Ida who is a beauty and the idol of the school. Ida likes Ogi too and will never let Nina has his way with him. Soon they all find out that Nina actually possesses a powerful ESP, and this makes Ogi pays a lot of attention to her, much to her delight and Ida's distress.

Thus begins the adventure of Nina and her friends in ESP club, and of course her 'battles' with Ida to win Ogi.

From Viz:
The business of Death is never done. Asato Tsuzuki works as a Shinigami, or "Guardian of Death," in the Ministry of Hades. It's his duty to make sure that the souls of the dead reach the afterlife, but contrary ghosts and humanity's evils keep getting in the way of a job well done. With all these problem assignments, will he ever get a bonus... or will he be stuck paying back damages for all eternity?

A breathtaking action fantasy of Gods walking a treacherous tightrope across the undefined border between Good and Evil!! Or, put simply, just NONSENSE. First work Remake Note: This project was begun by an amateur manhwaga on Naver who decided to restart Trump from the beginning because of it failing to receive attention by the Naver publishers. Then when it was picked up by Naver, Trump was once again republished and the author changed her professional name from sinceby1991 to Lee Chae Eun. Both previous versions were discontinued. The "official" Trump being published is linked below as a related series.