From Weblations Official Synopsis: The man-eating monster 'Infectee'. I became a monster. 

Sabu is a mutant boy that uses his newly discovered inner powers to fight against a band of criminals and terrorist organizations.

From Easy Going Scans:

Chang An in the Tang Dynasty of China (618-907): The demon star is passing through the sky, calamity is about to befall the Tang Dynasty - because of a woman.
Skilled in martial arts and war tactics, Princess Li Chang Ge sets out to avenge her family and take back the throne.

In the ancient world, the gods gave their wisdom to the child Usumgallu. Here, a new myth begins!!

He awoke, and the world was changed. The familiar high school now teaches magic, encouraging students to become the greatest magicians they can be. Beyond the city limits, wandering magical beasts prey on humans.

An advanced scientific world changed into one with advanced magic. Yet, what has not changed was the same teacher who looks upon him with disdain, the same students who look upon him with contempt, the same father who struggles at the bottom rung of society, and the same innocent step sister who cannot walk.

However, Mo Fan discovered that while everyone else can only use one major element, he himself can use all magic!

A world where the Demon King was defeated by a Hero that came from another world. People carelessly forgot about their fear of the Demon King and of monsters, living in peace.

In a forgotten and run-down cave in the mountains, a new monster that should not have been born was given birth.

The monster’s name was the “Black Ooze”. It was nothing exceptional other than its black color, an ordinary slime.

However, this slime had the special characteristic of being able to take the abilities of the living things it swallowed. It preyed on an insect that had paralytic poison, as well as other animals. Following that, it attacked a human, obtaining his knowledge and Desire.

Before long, the monster established its target as the female mage that came to explore the cave.

This world still wasn’t aware.

A Monster Was Born…

In the midst of an auspicious sign from the heavens, the emperor’s family gave birth to a special pair of twins—a male born with a forehead mole the colour of cinnabar, and a female born with six fingers. However, this brother and sister pair is cruelly separated by fate! One is taken eastward to celestial Penglai, to embark on the long road of cultivation. The other is abandoned in the reeds, to travel alongside an old swordsman through the mortal realm… As fate advances, how will the two fight destiny? Will they be able to reunite?

A world full of zombies. But this apocalypse... is it worth trying?! [Skills can be 'transferred' from experts.] Mental care, wooden construction, heavenly magic, animal communication, mechanical engineering, performance, etc.. There is so much to learn! The sprint of the prepared survivor, who is good at everything, begins!

When I woke up, I discovered I had become the villain in the martial arts novel I wrote! But of all people, why does the body I possess belong to a damn villain?

Hyuk Ryun Woon:
The fourth son of the Demonic Cult’s Leader
A nasty womanizer
A martial arts weakling with a filthy temper
A worthless villain who is one shotted by the main character in the novel!

If I don’t want to be killed by the main character, I have no choice but to become strong.
“Fucking hell. The main character and whatnot, I’ll wipe them all out!”
The Shaking Tale of a distasteful villain who uses whatever means necessary to survive!

The light is gone. Unable to escape the darkness, Pieta repeats the same day. Every day she walks to school down the same road, through the same rain, then talks with her friend Danae. Eventually, she finds happiness in the repetition. The days carry on as normal, until one day, her routine chat with Danae takes a different turn: "What?! You can remember the today that happened yesterday too?" Despite their bleak situation, the girls reach towards tomorrow!

The Arnold Magic Academy, a prestigious school that has produced a lot of great wizards. One boy, Ray White, decided to attend as the only wizard from an ordinary family. He is surrounded by students from aristocratic families and magicians who distance themselves from him. But people don't know. He is a person who has made a lot of achievements in the previous Far East fight, and now he is said to be the strongest of the seven great wizards in the world. Despite being ignored as a magician, he will eventually show his power to those around him?

God's come down to earth and all hell is breaking loose! Enter a world where demons seen only in dreams are real, oceans swallow cities, and the powers of the mind are preferable to guns.

It is here in the "Demon City" that Kyoya Izayoi, master of the rare martial art of nenpo, wields the mythical sword Ashura in defense of beautiful Sayaka Katagiri. As the evil Dark Order and the Super Soldiers of the Special Abilities Task Force clash in a race to find the one believed to be God, Kyoya saves a member of the SATF—and lands himself smack in the middle of a mess. Meanwhile, members of the Dark Order ambush Sayaka. Can Kyoya slay the beasts and save the girl? Will Kyoya help the SATF defeat the Dark Order and their plan to destroy the world?

It's nature versus the supernatural!

Japan is hit by a series of monumental natural disasters that leave the country fragmented and its people devastated. Follow the lives of its citizens as they deal with massive emigration to refugee camps on the Asian mainland and try to solve the political task of rebuilding their nation.

A Spirit of the Sun is also a retelling and melding of two well-known stories in Japan. The setting is directly lifted from the early '70s disaster science-fiction book and movie "Nippon Chinbotsu," (Japan Sinks) while many of the characters are allegorical to the key players in the Eastern classic "Sangokushi" (The Three Kingdoms). Sangokushi aficionados may discover greater entertainment by watching the characters in A Spirit of the Sun closely to spot these resemblances.

From Kaiji Kawaguchi, the author of Silent Service, Eagle and Zipang (as well as the artist for Confession).

A Spirit of The Sun received the 2006 Shogakukan Manga Award for the seinen/general category along with Rainbow by Masasumi Kakizaki and George Abe.

After a nuclear war turns most of the Earth into desert wastelands, surviving humans had used the sands in order to survive. One of them is a professional mercenary named Sunabozu, who makes a living by hiring himself out to anyone who needs his talents.

After passing the Guangzhou Special Chef Trials, Mao decided to travel around China, to learn more about the unique preparation of food. Upon his return, he will learn that the real battle has only just begun. The Underground Cooking Society has already begun to move...

"Reincarnated as a sub-character of a video game that I used to play!?"

After saving a girl and then getting run over by a car in the process, and "I" was reincarnated as"Rex" in a video game world. A handsome Rex with skills in all fields, but he is a helper character in the early stages. Tho Rex has a high level, balanced skill set and multitude of abilities…He's useless in the later stages of the game!!

I decided in the face the fact that I'm useless in this fantasy world

So let's relax by letting the main character of the game do both "saving the world" and fighting for his life against monsters"!　

This is a story in which an ordinary person looking for a "hero" but instead becomes a hero who saves the world for some reason!

The story is set in the continent of Jugdral, home of the descendants of the Twelve Crusaders. Lord Sigurd is the hero for the first generation, fighting an invasion from Verdane and helping out in the lands beyond. Sigurd's son, Celice continues his father's legacy in the second generation, where he rallies an army to defeat the Grandbell Empire. From Baka-Updates: Based on the Super Famicom strategy game, Fire Emblem 4 features the son of Lord Byron of Chalphy, Lord Sigurd. Bandits from Verdane made an attack while Grandbell's armies were away, and now Sigurd rallies the remaining forces to drive the bandits out so he can save his friend, Adean... Little does he know what he leads himself into will lead into a tragic turn of events in the face of Grandb.

Konoe Yuuto was summoned to a different world where slave trading is legal. There, using his "Skill Taker" cheat ability, he steals the abilities of monsters he defeats, and starts building a slave harem while hoping to live a carefree life after retirement.

Maybelle had lived a life of abuse under her parents. Upon discovery that these 'parents' aren't her true biological parents and that somewhere, her father exists, with a sad heart, Maybelle sets off in search of him.

Lin Feng travelled through worlds and even obtained an overpowered system, but he still faces a pressure as huge as a mountain.

System’s main quest:
Lin Feng is to create a school; establish history’s number 1 sect and Lin Feng himself to become the number 1 founder.

To become history’s number 1 founder, Lin Feng started to work hard.

“Your name is Shi Tianhao? Natural born sovereign roots but it was stolen by your cousin? Now being raised in a little village your father placed you in? Come come come, follow your master and we’ll let those people know that justice that is owed must be returned!”

“Your name is Xiao Yan? A genius of the past but a loser now? Even your fiancé came over to humiliate you by asking for a divorce? Come come come, follow your master and we’ll let that brat know the meaning of: don’t bully a youngster just because he’s poor!”

“Your name is Zhu Yi? The son of a marquis but you’re being suppressed by your father? Your mother was a saint but she was assassinated? Come come come, follow your master and we’ll let your dad know the meaning how problems can be solved with your fists…no, with reasoning!”