The prequel manga to the Cyborg 009 vs Devilman OVA.

When high school student Sataki Tadashi was young he received the ability to deceive people from a supernatural being known as "Mujina." Three years later, he becomes an adjutant to the local police and begins to put his abilities as a con artist to use for the sake of "punishing evil that can't be judged by law."

The girl who drank Mímisbrunnr to become a god from human, and the person who made her a god Odin.

The adventure sets forth to stop Ragnarok from happening!

Oldman, a mysterious man who wears an old-man mask and punishes the criminals and evils in the city, is the idol of many, including an elementary student named Tong. Even though Tong's father is a policeman, he feels embarrassed and ashamed of his father's inability to solve any crimes. However, on the day of Tong's 12th birthday, something shocking happens..!

Itsuki and Hayato, two brothers who grew up in a village nestled deep in the mountains, set out to hunt down a wolf that has been attacking the livestock of the village. Itsuki is about to go in for the kill when a gigantic beast appears out of nowhere, snatching up the wolf in its jaws and sucking the life out of it. The beast that stared Itsuki down was a gargantuan, blood-sucking vampire deer… Will the two brothers be able to return to the village alive?! Find out in this blood-filled action-packed story by extraordinary mangaka Kaishaku!

Due to an incident, two vowed-siblings entered two opposite factions. What will fate bring the two?

The story of the Green Clan, "Jungle," starring antagonists of K anime series 2, K: Return of Kings.

[Summary by OSTNT] Legend told; there exist a single being who embraced death to kill the God. Before death, he managed to create three eyes that hold his immense power and was then thrown down to the world of humans.

From MangaHelpers:

During the feudal era, warlords were not only in danger from enemies outside the castle, but also from within like their own lieutenants they trusted. To protect themselves, they secretly began to use decoys of themselves. Honda Masanobu was part of Tokugawa Ieyasu’s council and also his closest friend. However, to defend his home country from Oda Nobunaga’s campaign, he leaves his position. During the 10 years on the battlefield, he meets Jirosaburo Motonobu who looks almost identical to his former master. Masanobu comes to realize that Jirosaburo must become Ieyasu’s shadow because of his trustworthy character and battle experience. [vyc]

Celestial wizard Lucy wants to join the Fairy Tail, a guild for the most powerful wizards. But instead, her ambitions land her in the clutches of a gang of unsavory pirates led by a devious magician. Her only hope is Natsu, a strange boy she happens to meet on her travels. Natsu's not your typical hero - but he just might be Lucy's best hope.

Note: Won the 33rd Kodansha Manga Award for Best Shounen Manga in 2009 (shared with Q.E.D. - Shoumei Shuuryou). Won the Society for the Promotion of Japanese Animation's Industry Award for Best Comedy Manga in 2009. Vol. 9 was nominated in the Youth Selection category at the 2010 Angoulême International Comics Festival.

Reboot of the original Cronos Haze manga.

Naruyuki Touya, young student, arrives at Amagiri Gakuen, his new highschool. He finds himself on the quay of the station faced to a robot out of control and is attacked by a girl and then a classmate.

Who are they? How come the girl knows his father? And what is the connection with him and this highschool?

From Shiroyukineko Translations:
The Soaring Dragon Continent is a world of summons, you can only become strong if you become a summoner! Yue Yang, an average high school boy, was suddenly sucked into a wormhole and brought to the Soaring Dragon Continent. When he woke up, he was greeted with a lot of worried faces and found out that he had assumed another person's identity. Turns out he's the good-for-nothing son of the Yue Family, who had just recently drowned himself because of a failed engagement. Mysteriously, Yue Yang succeeded in summoning a monster on his first try, even when his previous self couldn't summon a single thing for eighteen years. Monsters simply listened to his orders and agreed to form contracts with him.
Thus begin the journey of the summoning prodigy.

The world has remained at peace since the hero from the blavet clan defeated the demon king a hundred fifty years ago... however, the demon king has appeared once again but this time, in front of yuushi, the descendant of the blavet clan! and now, a new adventure is about to begin!

Ichiru Mizunuma is the student council president at the prestigious Ichimatsu High School. Shockingly, he is stabbed by fellow student and council vice president Kyosuke Hino.

What is Kyosuke's motive? What is the badly injured Ichiru's secret plan?

Yasuto Akashi skipped school the day the games began, after having a fight with his best friend. While his classmates competed in the games at school, Akashi and other students who skipped school must compete in a separate set of games in order to survive.

This series takes place at the same time as part one, but is also continuation of Kami-sama no Iutoori.

A spirit was floating in another world's dungeon, missing its memories. Eventually "he" learned to possess other creatures and using the bodies of the beasts in the dungeon, made his way to the outside world. Dragging a young female knight, a pretty young lady, and even a beautiful mercenary into the mix, our protagonist begins his great adventure in this world.

In the year 2162, a tiger cub named Koga was transported to Earth from another dimension. Originally thought to be a normal tiger cub, he was brought up on an endangered animal reserve. Eventually he starts talking, and walking on 2 feet. In 2170, the Earth is attacked by an alien weapon that has the power to destroy countries...Koga is now fully matured and decides to join the Space Force to protect the ones he loves. In 2172, they travel to the alien world to destroy it. facebook.com/galaxytiger

The St. Mikhailov Academy student Oribe Mafuyu comes across a mysterious silver haired boy named Sasha. He is a Qwaser, a being that draws power from Soma and is able to manipulate a specific element. And now, in the 21st century, the mystery revolving around an Icon turns the academy into the battlegrounds for the fight between the Qwaser!

The story is set in the West, with a bounty hunter named Sting Woodmack. He has one objective: finding Gold Romany, the group of thieves who have a country-wide bounty on their heads!

Arihisa Aokura needs money. He needs money in order to support his family of orphans and earn a living at the same time. Looking online for potential employers, he finds a posting for a part time job in an "evil organization." Seeing that the pay and benefits were fairly substantial, he took the chance and took the interview. He was somehow hired and now has to work as a henchman inside the evil organization "Antares." Will he be able to survive the onslaught of missions against heroes while providing for his orphan brothers and sisters?