Kasuga Rito had a hidden wish for a very long time: to use his ability for good and to help people. But before he could do that, he needed to gain the power of magic first.

Rito is a sophomore in Rezon Institute, a school for people with special magic abilities to find, train, and develop their skills. Each student has to reach 100 points to be able to start using their ability. Otherwise they won't move up from the "Common" and into the "Starlight" class. But Rito, known as "the Eternal 99", has been stuck with an unchanging 99 points for a long time.

So here comes his new plan: to become a friend with Scuse Fontana, a three-day exchange student from the Demon World, and to ask her for some food. (There's rumor that a human can increase his power by eating food from the Demon World). He slipped into the hotel where a welcome party is being held for the much respected lady, just to find that she's actually absent. Losing hope, he wastes no time leaving the hotel. At the back alley behind the hotel, he finds a tiny dragon, which for some reason sticks to his head and now he can't get it off...

Wizards are never a single entity. That is, they are composed of a partnership of the "holder" and "caretaker" of the stone.

Celeste is the "holder" of the stone, and she's in a hurry to become an independent wizard. But her partner, Chris, is not the easiest person to work with...

From Easy Going Scans:

Once... Humans and Orcs peacefully co-existed, but at some point humans got greedy and started a war claiming the Orcs' territory. The diety-Lord who created all, got angry with the humans' greed and decided to punish them with 3 catastrophes. One of them was the "Dragons", divine creatures blessed with magic capable of doing almost anything. Now the Orcs, with a "Dragon" by their side, seem to have the upper hand. Will humans just sit back and see their land get destroyed? They are too devious for that... Their only good plan at that point is to abduct a "Dragon" to even things up. But how are they going to manage the capture of a being with so much power?

Note:Manhwa adaption roughly covers 2 volumes of the original novel Dark Mage (Novel).

December 20th, 198X. Mysteriously, people across the globe witness the same dark dream. Soon after, the number of humans unable to wake from their sleep begins to increase steadily. There are reports of life-like "R-dreams" that are experienced collectively and haunted with "Zel" - nightmare creatures. Hokuto, a struggling art student, is doubtful of R-dreams until he falls into one. There, he meets new friends, battles with the Zel, and tries to understand the nature of this dangerous phenomenon.

Summary from Iskultrip Scans: Story 1 (Phantom Lim): Lim and Iota live in a robot country. Lim, who is in love. Iota, whom she loves. The kind robotic maids. Lim has always thought her sunshine-filled days would go on forever, but... what is this promise Iota made with her in the past and the secret that he's keeping from her?

When a person who under goes extreme depression/anxiety, loses control, a person will become a demon consumed by darkness. Luckily there are those devoted to hunting those demons.
Boy meets monster while taking shortcut home from school, is rescued by a girl with a gun. Monster gets away. Later on, girl makes contract with boy and uses his soul energy to make a big gun and kill the monster.

Comedy about a high school manga club. A frog god who can turn into a good looking guy lives in the club meeting room, but that has very little to do with the plot. He's there to just read manga.

From Awakened Memories: The new school Lilia has just transferred to has a lot of people with suspicious abilities. There are vampires with fangs and the snow woman's son. And then it turns out that Lilia herself is a demon who sucks the life out of men by kissing them!?

From BLU comes an unearthly collection of stories illuminating the complex lives of immortal beings. An angel, who loses his place in Eden, finds a mysterious and dangerous new patron. A poor painter finishes a woman's portrait without a subject and reveals his forgotten past. These stories and more will delight fans of beautiful angels and demon boys!

From GOoC:
Data is a kind of Magical Boy series manga by Tachibana Kaimu. The two main characters, Sakura and Yuki, are on quests to gather stones with magical powers. In doing so they are also hoping to uncover the mystery as to why they both seem to have lost their memory. A lot of new characters who are also "hosts" for the stones join in the fun as the story progresses.

The lord of darkness has decided to wake up the Dragon God that will give him the necessary power to dominate the world. But the Dragon God doesn't like his intentions and decides to entrust the mission to find the element that will revive him to the human who holds his soul.

Sequel(?): 팔용신전설 Plus

Ninomae Iko, has lived in a house of only her dad and brothers, who all practice kendo. Looking to become a little more girly, she transferred to an all girls' school. Here, rumor has it, a magical cup filled with red wine will grant any wish if your blood is dropped into it.

Note: Plenty of pantsu moments.

Monsters descended upon the humans all of a sudden, monsters that can't be detected by most, unless they have a strong sense. An invisible predator, it feasts on humans to grow in strength and powers. 4 Death Gods are chosen to destroy these monsters and to seal the "sink" hiding the monsters fast.

While Japan in desperate situation, 13 "devil survivors" cut deals with devils to obtain abilities to fight against unknown invaders with only 7 days left until a world catastrophe, you need to make crucial decision to survive...

Kinda creepy. Dante, the main character, is fighting various characters to keep the passage to the demon world sealed, but he doesn't seem to be having much luck... (And the story says 'To be continued' at the end, so there might be more to it.)

From Horobi no Michi:

Clockworkers- mechanical men, created during the war as a weapon to kill as many as possible. That war may be long over, but rogue Clockworkers are still roaming about, spreading fear and death wherever they go.

Machina's a member of the CWA, an organization dedicated to the destruction of these rogue robots.

Along with Deus, her Clockworker partner, she travels the country in pursuit of these dangerous robots...

Kenichi is a high school guy who wakes up in a magical land. Together with a fairy and a swordsman, he must recover two magical items to save the magical world as well as his own.

note: The manga has been reprinted in a normal tankoubon size with only Akiyama Tamayo noted as author.

Republic of Biscotti faces a predicament by the invasion of Galette Leo Knights. In order to save the country, Princess Milchore summons a "hero" from the outer world. Shinku, a junior high school boy living in the Earth, is chosen as the hero.

*This series contain side stories to the anime series that take place before the series, in between some episodes and at the end.*

DOCTOR! is a manga by Ippongi Bang staring the mysterious young Doctor (Yeah, that's his name) in a fantasy world taking place in Latin America.The art of surgery has been lost, and illnesses are caused by demons and forces of Darkness. Doctor travels with this little blob named Liquido Medio and they travel around from place to place curing and helping people along the way.

From Transcendence:

This is a tale full of wonderful Ancient Chinese legends. A group of beautiful female fox demons lived at the base of a mystical mountain. Among these foxes is the very special Caisheng, a little fox girl with the ability to change into a male fox demon when she matures and allow the continuation of her species. One day, she secretly went into a nearby human village and befriended a boy named Duoxi and a girl named Xiaoque, and when the little fox child is attacked by a dog, the two human children saved her! Now the two children are marked, and will remain so -- even in their reincarnated lives -- until Caisheng repays her debt to them...

Two hundred years later, Caisheng not only becomes the most powerful fox demon but also has mastered the art of gender transformation. She begins her search for her saviors' reincarnations: the boy now known as Yunshi, and the girl as Ping'er. Not knowing Caisheng's true identity, Yunshi falls in love with the female Caisheng, and Ping'er with the male Caisheng! But Yunshi is a priest whose duty is to destroy all of the demons... what will he do when he discovers Caisheng's true nature? And whom will Caisheng choose in the end?

(Clarifying note: Very low smut content)