From MangaHelpers:
From the perspective of an alien planet with super-advanced technology and tiny (1/60th the size of a human) inhabitants, planet Earth was the perfect location to banish their worst criminals. Five of said criminals were sent to the planet to be exiled, attached to little critters like frogs and rabbits so they can never be fully active. Due to an accident, these five criminals managed to escape and attach themselves to five different girls that were nearby. The one responsible for the banishment of these five criminals now must detach them from the girls by mouth-to-mouth release.

From Bamboo Feathers:

Every night, strange happenings visit the residents of shared pension and cafe 'Tsukishiro'. One evening, the main character Touya saved Yuzuriha, and there's something about the mysterious beauty that makes him feel nostalgic. Yuzuriha asks him "Do you believe that there are beings from another world?"

This time from the fan-favorite Morimoto Shuu, a lovable story of random animals, strange heritages and living together!

Arion, a young man, is kidnapped by Hades as a child, raised to believe that his mother was blinded by Zeus, and that killing the ruler of Mount Olympus will cure her.

In the Kingdom of Bandiera, the royal prophet has announced the incoming resurrection of the Demon King, 500 years after the first King sealed it.

Four heroes were thus chosen and sent to the location of the Demon's prison. Meanwhile, Charlie Barett, a modest gate keeper, is stuck at the Royal City with a job he hates, spending his days complaining to his captain and his co-workers; one of which is the noticeably generic-looking Jimmy Monbarn.

Souya is a sullen salaryman whose days are spent chasing after work deadlines all while still keeping his dream of becoming a manga artist. To him, his one and only support in life is none other than his beloved wife, Yuuka. One day, on his way back home, he was suddenly caught in an accident and before he knew it, an alien had taken hold of his body! Not only that, the evil threat of another alien is closing in on Yuuka too!

Here comes Souya as "Otto-man", his superpowered husband form, as he jumps in to save his dearest wife! Have a taste of his love for wife and this world!

Appraiser Laurent was kicked out from his guild 『Golden Hawk』. It was a result of one-sided jealousy from the guild leader, Lucius. Feeling hurt and crushed by the sudden dismissal, a female mage named Lilianne gave him a helping hand. Together with her, he decided to create a new guild to mess with Lucius. Eventually, those talents that Laurent found through his appraisal skill will create the strongest guild.

Having reached retirement age, Hiraga Raizou (65) lands a new job that pays extremely well! And it’s top secret!! With no guarantee on your life!!! When he sets out to do the company’s mysterious work, he encounters a little girl at their “workplace” and gets pulled into an incident. Raizou took on the job to pay the medical bills for his grandson’s incurable disease, but what awaits him in this line of work…!? Author of “COPPELION” Inoue Tomonori brings to you an immoral crime action manga!! An elementary school girl and a tough old man team up to rampage through the underworld!!!

(From Fallen Angels)

Everyone in a high school is suddenly transported to another world. As they are attacked by monsters they find that some of the students now have superpowers. They organize themselves into two groups. Those without powers are called the Stay Home Group and those with them are called the Exploration Group. On a day where most of the Exploration Group is out, the remaining ones that stay behind start the slaughtering and raping of the Stay Home Group.

Here we meet our protagonist, an average guy with no abilities who had just barely escaped death at the hands of his schoolmates. He ends up far away in a cave on the verge of death, exhausted and wounded when a slime enters the cave and starts eating away at his hand. All he can do is utter, “…please… someone out there… help me….”

A young girl named Rahzel is booted out of her house one day by her father with the instructions to 'see the world.' And so her journey begins. However, she won't be doing it alone... for she befriends a stoic young man named Alzeid seeking revenge for his father's murder.
Alzeid and Rahzel are like oil and water... but even still, they feel strangely drawn to one another. This could be either the result of an underlying attraction -- or their shared powers with magic. And so, the two reluctant allies travel from town to town, using their powers to help the helpless, while discovering their own respective places in the world.

Chateau, a headhunter from the organisation of bounty hunters, met a mysterious person named Son Ryang-Ha while on one of her missions. After their quite violent confrontation, Ryang-Ha got suddenly interested and asked her for a number. And thus started a game of cat and mouse, in which the hands of the participants are fully covered in blood...

The warrior Hamel went on an adventure with his companions to defeat the Demon Kings, but after dying just before the final battle with the Demon Kings….

“Waaah.”
‘What the fuck!’

He was reincarnated as the descendant of his fellow warrior, Vermouth.
Hamel — no, Eugene Lionheart was reborn with the blood of the Great Vermouth.

‘My previous body held enough talent to be mistaken for a genius, but this one… there’s just no comparison.’

With a body that had higher specs right from the start, he showed explosive growth that far surpassed what he had achieved in his previous life.

Along with the unknown reasons for his reincarnation came the uneasy reality of having to coexist with demons.
He was faced with a world that made him question everything he had believed in.

Gifted with this extraordinary body since birth, as Eugene, he begins walking down the unfinished path from his previous life.

The blacksmith NPC ‘Aidan.’ One day, his village gets deleted by the hands of the system moderator and as he and his little sister ‘Elise’ perished, he swore to himself. I’ll destroy this system with my very hands. It was then…! “You have unlocked moderator perms, Moderator Lv. 1” Aidan wakes up with a new power, Marking the beginning of his journey as a moderator…! What will become of Aidan?!

After losing his wife and daughter in a horrific accident, Yun-Jae finds himself stuck in his routine until he receives a diary from his future self. “I can see… my wife and daughter again?” Through winning the “games” in the “parallel world,” one will receive a “prize,” and using this, he could revive his dead family… but out of all the survivors of this cruel world, Yun-Jae is the only one with the knowledge of the future. Will he be able to turn his greatest wish into reality?

Rola who had received special education to be a swordsman from her A-Rank adventurer father since a young age, enters the Royal Capital's Adventurer's school at the age of 9. Rola filled with expectation in her heart in hopes to make many swordsman friends. At the day of the entrance ceremony, Rola's sword aptitude value was measured at 107. Between normal students whose aptitude value is around 50-60, Rola was definitely a sword genius, but the magic aptitude that was measured after that was 9999. Rola was stunned, and while she didn't know what was even happening she was transferred to the Magic Department.

Contrary to Rola's will, she exerts her super-genius, and instantly becomes stronger than anyone in the school.

The greatest demon lord in all history, Varvatos, has reigned for several millennia as absolute ruler. Now, there's only one thing left for him to do... enjoy the life of an average commoner! When he reincarnates as a villager in an unspeakable city, everything seems to go as he expected, but there's just one small problem: even when he restrains himself, Varvatos is still too strong! In a short time, rumors about him spread, and now, all sorts of men, women and assailants are approaching him! The quiet life I'd always dreamed of seems so far away...

The small country Sunkwoll is in a tight spot because it's under attack of the great country Zarmine. But the general, Rain, who's reputed to be an exceptionally gifted swordsman, is against the war and won't enter the battle. But how is one supposed to wage a war like this anyway?

Oda Teruasa is a high school student gifted with intelligence, good looks and wealth, making him the "perfect scion" of the Oda Group: a powerful conglomerate whose name is known all over Japan. But then he gets caught up in a nightmarish game of winner-takes-all against the son of the Belmont mafia family...

Zu Huaixuan, a child raised in an orphanage, signs a contract with Yi Yang Shigong to travel into the underworld and to become a Bai Wuchang (a good spirit cop) in the god’s army in order to save a teacher who is very important to him. This story takes place in the spirit world that does not only feature Taiwanese and Chinese spirits, but spirits from other cultures as well.

Every 100 years, 100 demon children are sent to Earth to compete in a battle to become king of the Demon World. Each demon is paired with a human partner who is given a spell book of a specific color. The human can cast the demon's spells through their book. If a demon's book is burned, they disappear and return to the Demon World. The last demon remaining becomes the king. The show is oriented around Gash Bell and his human partner, Takamine Kiyomaro.

Won the 48th Shogakukan Manga Award in the Shounen category.

Traversing into another world, Zhang Xuan finds himself becoming an honorable teacher.

Along with his transcension, a mysterious library appears in his mind.

As long as it is something he has seen, regardless of whether it is a human or an object, a book on its weaknesses will be automatically compiled in the library.

Thus, he becomes formidable.

“Emperor Zhuoyang, why do you detest wearing your underwear so much? As an emperor, can’t you pay a little more attention to your image?”

“Fairy Linglong, you can always look for me if you find yourself unable to sleep at night. I am skilled in lullabies!”

“And you, Demon Lord Qiankun! Can you cut down on the garlic? Are you trying to kill me with that stench?”

This is an incredible story about teachers and students, grooming and guiding the greatest experts in the world!