From MangaHelpers:
In this world, there are those who look like humans but are actually beings with supernatural power. In order to respond to crimes committed by these kinds of people, an organization that employs some of their number has been established. Kurohimeyama Eve is a member of this organization, and she is also a teenage girl that has "Oni" powers. One day, she goes to meet a new member, Ichizuka Senya, who is a boy with dangerous shadow powers and a bad personality. In front of the other girls in the organization, though, he seems to act perfectly nice. What's even worse, he's transferred into her private religious school! Kurohimeyama's once-peaceful life will never be the same.

Six months ago, Karukozaka High School was sucked into the demon world, and in the ensuing chaos, only two survivors emerged: Nobu, who defeated the Demon Lord that took over the school, and Yumi, who possesses latent demon powers of her own. Although they're both trying to put the incident behind them, the gateway to the Underworld remains open, and soon Nobu finds himself battling demons right on the streets of Tokyo. The reason for this infestation is simple: a secret organization is trying to establish a Demon Kingdom on Earth by summoning demons through the gateway. Nobu and Yumi are the only people to have been to the Underworld and survived, so they may have the power to stop the infestation but before that can even happen, they'll have to find each other first.

Deceptive Mikage-san

A story about a cat and its owner.

Manaka-kun and Risa-chan are inseparable childhood friends, with Risa being one school year ahead of Manaka. But this means that starting this year, Risa will be in middle school, whereas Manaka will still be in elementary. How will this affect their friendship?

Kou Tarumizu, who wants to win the photo contest, said: "I want to photograph you two no matter what."
I will touch them without knowing their relationship.

An OL who is bound by "normal", a novelist Chiho who lives in "freedom".
The relationship between the two starts to move in the wake of the marriage of the wolf ....
This is a human love story that looks for "happiness".

“Shokatsu Koumei”, also known as Zhuge Liang. Among the few heroes that decorated the Annals of the Three Kingdoms, it was once a prestigious name. An account of “an ingenious tactician”, the thousand-year-old story of the “God of Stratagem”. It is said… “in a country torn by factions and transformed into a devastating and cruel hell, the heavens sought peace by sending a composed, well-loved young man of impeccable and divine virtues.” Well, well. In truth… He is a childish man.

A slice-of-life comedy about close friends! Mayo nee-chan goes for it today too! Original Webtoon: http://www.comico.jp/articleList.nhn?titleNo=32

Hagiri Town is a lonely country town. People have sometimes avoided getting into that topic because of the unusual nature of 56 people missing in the past 30 years. Meanwhile, a male teacher, Gunji has been assigned to a high school in the town. Wherein he is responsible as class deputy and also to take over the floral arrangements club. As head of that club he receives a poisonous red flower from an old man who donates flowers to the school, but…this was the beginning of a nightmare that would change everything!

Sequel to Immortal Regis. Reading the entirety of the prequel is highly recommended, otherwise, this story from chapter 4 on will spoil it and/or be confusing.

Cavalier of the Abyss (so far) is set only in the world of Chaos. There is now a Regis of Chaos.

In feudal Japan, a young boy who can see the future through his dreams struggles to protect those closest to him.

A two part short created by Neji in celebration of Obon festival 2018. In this short story, Neji turns household vegetables into overly flirtatious monster girl lesbians.

The adventures of Nishikata Chi in middle school.

From Starry Heaven:

As a punishment from her teacher, the selfish witch Dorothy has lost her attractive body and magical powers. In order to regain her true appearance and powers, she must kiss someone with a high aptitude for magic and have them sign a contract to be her servant. The options that appear before her are: Trot, the softhearted but lecherous hottie; Brave, the dog with a secret; Hearts, who is aloof and wears glasses; and Shinku, the gun woman of few words. Whether it’s on the lips, on the hand, on the thigh, or on their hair... kisses are what invokes the contract!? As she increases the number of servants she possesses, will Dorothy be able to obtain her aspiration of getting revenge on her teacher?!

From good morning to good night, working like a horse, aiming for the betterment of Japan’s tomorrow… that is the duty of a civil servant (Koh-Boku), a public official of Kasumigaseki.

One such Koh-Boku, Kyuu-san, has Kashiwagi by his side, a super-elite who is a dozen years his junior. Even though he thinks that he really should push his junior to stand on his own, he couldn’t bear to be parted from the pleasure of working passionately every day with Kashiwagi… but a cozy relationship that could turn romantic…?!

The story centers around Higashiyama Haruto, a high-school teacher, whose dearest wish is to be killed by a high-school girl.

A tale as old as time about a “small fatty” boy named Yuzuru who transforms from an ugly duckling into a magnificent swan. What happens when this once ugly duckling turned prince convinces his love to his ex-elementary school classmate?

Having met during the cherry blossom season, the shy Sakura's reactions which are always fresh and funny captured Umeya's interest. Because of that, he ends up always teasing him. One day, in a drunken moment, Umeya forced a kiss on Sakura. If all he meant to do was just to tease Sakura, then he wondered why does his heart pounds for him...

Spin-off of Steins;Gate, based on the Suzuha route of the Hiyoku Renri no Darling game.