“If you expose our secret, I shall kill you.” After an accident on a mountain, Takatou is helped by Ritsu, a woman with a red birthmark under her right eye. “If consumed, they become an elixir.” Having learnt the legend of the Red Leopard, Takatou seems to become obsessed and continues to search for Ritsu. Thus begins the love romance of these two trapped in a legend.

The devil who lost its magical power in the fight against long angels fulfills the principle of absorbing the human soul and restoring its power! It was a demon king who traveled to the human world with a trusting four heavenly kings, but the destination that I reached was a solitary island of the ocean...! On that island where magic can not be used, a survival that can laugh backwards with the sadness of rulers and subordinates in the Makai begins!

From MangaHelpers:
Summoned into an alternate world of Alayzard, Ousawa Akatsuki helps defeat the demon lord, brings harmony back into the world and, under the demon lord’s last request, takes the demon’s only daughter back into Akatsuki’s own world.
It turns out that being teleported into a different world is somewhat of a common occurrence back home. Those who return often come back with the power to use magic. So a worldwide organization, fearing people like Akatsuki, created Babel, a school to teach and keep tabs on the magic users.
Akatsuki is able to bring the demon lord’s only daughter into Babel as his sister, Ousawa Miu. A new chapter for Akatsuki is about to begin--this time, in his own universe!

Tooru Sawada not only goes to the same school as his young aunt Sugako but has to live with her under the same roof! Somehow Tooru always ends up being dragged into his beautiful and mischievous aunt's pranks and shenanigans.

There was a parallel universe called, Gamindustri. A long time ago, in Gamindustri, a big incident took place. But the conspiracy of the four continent's hard driven goddesses, crushed it and brought peace. This is the story of what happened after the goddesses resolved the incident.

Based on the ps3 series of games, the games poke fun at several facts and details of the gaming industry; even to the point were character names are affected. For example "Neptunia" is a reference to the Sega's unreleased "Neptune".

A Manhua adaptation based of the popular smartphone game Honkai 3rd launched by miHoYo

From MangaHelpers:

Shinomiya Ryouma is working frantically to raise a billion yen for his sister's medical bills, while going to high school. One day, a mysterious woman asks him, "Would you put your life on the line for what you desire?" After receiving a ticket from her, he gets caught up in a fatal accident. When he wakes up, he finds he's turned into a girl and what's more, he's participating in a "game" where a win means he can reverse his fate but a loss means he'll die instantly.

In 2755 AD, the latest model spaceship Xebec departed from the City of Nemexis in the Nemexis Star Sector. Due to an accident at the moment of its warp jump, it had to perform an emergency landing on the mysterious planet, Garaga.
The Planet Garaga is a brilliantly written genuine S.F. story that tells of the unimaginable adventures that take place on that twisted world.

The title "Yuu & Mi" is a pun on the English phrase "You and Me". Aimu Yuu (remark: his name sounds like "I'm you") is a boy who just moved into the equivalent of a boarding house.
Everything is not as it first seems, even the boy. Living in the same room is a ghost (female) named Mi. The series is a combination of love, humour, and a general parody of anime and manga. There are a lot of weird characters in this manga.

A high class all girls school that grooms their students to become a proper lady with manners… or so it should’ve been. But somehow the public morals is a bit loose… the proud honour student, lily is giving the students [freedom] in the school?! A yuri comedy comic!

In the village of Hananoki, Taro lives alone since the death of his grandfather. One night, through his telescope, he accidentally sees a girl falling from a tall tree. But once at the place the accident happened, the only things he can find are the girl clothes. Back to his house, a mysterious creature try to hide itself. When he finally manages to catch it, what isn't his surprise to recognize the girl which now has only the size of a frog.

The day a young boy was born was the day that the legendary thief died. The many battles that revolve around the treasure left behind by him. Here, the curtains are pulled and the story starts.

In this 1977 science fiction short story, a soldier in the army of Cambyses II is wandering an endless desert, lost from his company. Just as he is about to accept death, he sees a glimmer of light in the distance — and when he follows it, he finds himself in a large building full of strange machines he has never seen before, and occupied by one young girl. They cannot communicate; her words are as gibberish to him as his are to her. The girl nurses him back to health, treating his wounds and feeding him. But when Sark attempts to leave, bringing provisions with him, the girl turns on him violently…

Drowning in debt and looking for a way to survive, Taegyu is given the option to sell his beautiful wife, Seoyeon for a month. Will Taegyu and Seoyeon be able to go back to their normal lives?

It tells the life story of Hayato Heiwajima ordinary guy occupation is the main successor of his grandfather and Heiwajima industries, the Maid Hatoko Heiwajima and close relative, is responsible to teach you how to deal with females and is not so easily fooled. The problem is that her teaching methods go beyond the ordinary.

Momo-chan has a secret that she can't tell anyone...

Simon, the 'Do It Dude', runs errands for people. One day he meets his childhood friend 'Iris', who works at a club, in the worst way possible…

In both middle school and high school, Kawashima hadn't had any luck with girls, but this is the day that a miracle encounter came to him! In the apartment where he moved, there was a high school girl living in his neighborhood and in addition to that, she is living alone! In a situation that any man will admire, Kawashima's tension is hyped up. However, there was also a odd part to it, like she likes to drink beer. What is her identity? It's a little bit ecchi JK comedy!

“Sometimes you hurt the ones you love without ever realizing it.” Taizou and Ikuto, only 1 year apart, have been together since childhood. They went to the same kindergarten, the same middle school, and even the same high school. Despite being younger, it’s thanks to Ikuto that Taizou managed to pass his college entrance exam so that they could go to the same school together. However, in the year that they’re apart, Ikuto drifts away and ends up going to a different school. Taizou, oblivious to Ikuto’s feelings, chases after him to find out what happened.

After their death, people's memories fade. The wish to retrieve the fading memories of his deceased girlfriend leads Wu Nian to become the Magician of Memories.