From MangaHelpers:

There is a large virtual space called "Deep Forest," where many people go as avatars. Origa is a schoolgirl who has become an explorer in Deep Forest in an effort to discover the reason behind her mother's death. Luckily, she has a famous hacker as a partner and guide, a monkey avatar called Jr.

Deep Forest is a dangerous place, contested by the company she believes is responsible for her mother's death, hackers, and others. Origa has a difficult path to travel in order to uncover the truth. [tethysdust]

“Sword & Magic Online,” a VRMMO consisting of 255 floors to clear, harbors a horrible secret: Everything from floor two onwards hasn’t been implemented yet. And all the devs ran away. Also, there is no magic in this world of swords and magic, the gold value has inflated indefinitely due to a dupe glitch, this kusoge (fixed term for a shitty game) is going down the toilet. And yet, there are friends enjoying this kind of game. For that reason and to avoid this world’s destruction (end of service), a youth named “Sasaraki” continues developing this kusoge world together with the mysterious girl Alice who dwells in the debugging room, and…? A VR kusoge development rom-com!

A party of 4 heroes defeat the Demon King, however with his last bit of power he separates and gives each of them an unusual curse to make them suffer for the rest of their lives

Kazuya and Yu are both in the swim club. One day, Kazuya smells and violently reacts to something that shouldn't exist at their school for elite alphas... this is a story about an alpha who is an under-performer and an omega who's an overachiever.

One night, a strange object falls on the head of Nitta, a member of the yakuza. Inside the box is a strange young girl named Hina. She has tremendous supernatural powers, and Nitta finds himself reluctantly taking her in. Her powers can come in handy for his yakuza business, but he also runs the risk of her using them on him! Not to mention, if she doesn't use her powers, she will eventually go berserk and destroy everything around her. Nitta and Hina's strange life together is just beginning...

Nine years ago, three seeds were planted, and now they turn into three roses. Behind the girls have been chosen, their wings of destiny open. Bloodlines and hunters, roses and demons, love is like a symphony playing a melancholy tune.

They believed that every time they took a life, they brought happiness to another...

Before becoming Night Raid's deadliest ally, Akame was a young girl bought by the Empire and raised as an assassin whose sole purpose was to slaughter everything in her path. Because that's what makes people happy... right?

To end the bitter war between their countries, Roh, prince of Karna, has been engaged to Sukur, princess of Horun. The two of them meet for the first time in the Garden Sphere, a secluded palace where they are to live together for one year until they appear before the people.

Neither of them has any romantic interest in the other, but they decide to pretend to be a loving couple in order to keep the shaky alliance between their countries from dissolving. However, neither of the two children has any idea how couples act, giving them only a single year to discover it for themselves and perfect their act of romance, starting with simple acts of love and working their way up from there.

An ordinary student accidentally traveled into an other universe and became the king of a small kingdom. He had gotten a Cheating Code of life and was able to complete something extraordinary. This is the story about a king that was able to conquer continents and leave behind him an ultimate legend that will be recited between every generation to come.

The main character is Carol, a blonde-haired, blue-eyed American teenager from a wealthy family with an interest in Egyptology studying in Cairo. When her mentor discovers the tomb of a young pharaoh, a curse is put on the excavation team and Carol. The curse sends her back in time to ancient Egypt, where she becomes embroiled in the affairs of Egypt and other ancient countries such as Assyria and Babylonia. Carol meets Memphis, a handsome young pharaoh whose tomb she excavated in modern times. Despite his headstrong, at first violent nature, they fall deeply in love. This angers Memphis's half-sister, the Priestess Isis, who has longed to marry him. Carol, due to her exotic looks and curious ability to tell the future, becomes a major player in ancient history.

In 1991, it received the 36th Shogakukan Manga Award for shoujo.

Su Yun was a prodigy, blessed by the gods. However, life is never so easy. Soon after reaching 6th stage in spirit novice realm cultivation, his progress stagnated due to incurring a rare medical condition. A few years go by, and Su Yun has spent all his time gambling or drinking, wasting his youth away, but one day everything changes. Qing Er, the only one who stood by him was forced by his clan to be a sacrificial bride to someone she didn’t love, only to be executed by the groom on the wedding night for fleeing. Burning for revenge, he scoured the world for a cure for his rare medical condition from both righteous and villainous side. Countless years go by, and finally Su Yun not only found a way to cure his rare condition but also gain immense knowledge on a myriad of martial techniques. But before he could fully cure himself, he received news that the groom suffered an assault that damaged his internal organs. Rather than wait for decades to become fully cured, Su Yun decided to hatch a plan for the assassinate of the groom. Unfortunately, he underestimated the strength of the groom’s family and was killed instead. Then he regains consciousness. He comes to a realization that he went 15 years in the past. This time, he vowed to protect Qing Er, but first he must cure his rare medical condition. Will he learn from the mistakes of his previous life or is everything still set in stone?

From OSTNT:

The Mythical Realm: A world of blood, a world where the strong triumph over the weak, Ye Yun descended to hell to slay hordes of Demons and ascend to Heaven to slay the Gods just to prove his existence as the strongest, a world where a single being can rule over Heaven and Earth.

A Hamefura anthology focused on the series' female cast, published through Comic Yuri Hime.

Follow the life of cat-girl Kurona and her friends as they meet other monsters, demons and spirits - learning how to deal with them...and with humans!

From Dark Horse: When supernatural police officers come to take De-Mo back to the demon world for execution, Aimi, aka Shadow Lady, agrees to take on a special mission in order to save her demonic pal. Aimi must help recover the Demon Stones that were stolen and released into the human world. But each stone contains an imprisoned arch-demon, making Aimi’s mission as deadly as it is difficult. And if the secrets of the Demon World become known to the human world, De-Mo’s life will be forfeit

Narukami Tasuku isn't just an average high schooler. He can see ghosts and demons, even though he doesn't want to. One day he was involved in an incident and found out that his family were totsugamimori, ones who protect the totsugamizuka. He is the only one remaining in his family and now, as a heir of totsugamimori, he was dragged into that world...

One day, the young boy went to help the cat of God until he killed himself. He was born again in a different world with the special power to feed the cat!

The story of the friendship between Arsenio, a young man who wishes to become an armsmith, and Sauro, a young soldier who wants to become a knight, and its subsequent ruin.

In kingdom era 408, the prince led five heroes to the defeat of the Demon King and ascended the throne. Eight years later, he passed away from illness. One day, several years later, Tifa was separated from her father Chris at the market, kidnapped by a human-trafficking group made up of disguised demons! To protect his daughter, Chris is forced to reveal powers that he has hidden for a long time… There seems to be a connection between this former noble and the heroes! What are the daily lives of the retired heroes like?