From Aerandria Scans:

The spring when Minori passed her middle-school entrance exams, her granny called her to her atelier and drew a good-luck charm on Minori's back to protect her. But then, her granny passed away without telling her from what she had to be protected from. She only said that when Minori enters high-school she must never ever enter the art-gallery at night. But now Minori is in the art-club. Will she be able to stay away from the Art Gallery as she promised?

Two mysterious transfer students investigate a school where, in the past two months, three student have fallen to their deaths.

[Otome Cafe & Maid Latte]

The Guardian with rabbit ears proclaims the sad truth.
"If your lost memories are not recovered, your soul will be destroyed."
And so our protagonist Minori naturally begins to search for her lost memories.
Little by little, the shocking truth becomes clear. Minori is actually...?

A bus accident occurs with one of the twin sisters dying.
Shiori and Minori fight over one body to be able to return to the real world with the help of their spirit guardians.
The one to collect the most memories wins.

Humorous oneshots about the Professor, his apprentices Luke and Flora, and his arch-enemy(?) Don Paolo. As a bonus, each chapter contains actual puzzles, just like in the game!

From Easy Going Scans:

Mia has a special talent which she didn’t know she had until recently. If she concentrates, she can transfer in another dimension called “Layers”. That dimension has no people except those that can transfer of course and... The monsters that lurk there! If you accidentally get trapped in “Layers” your only hope is... The Special Class!

From Yen Press:

When the police discover Laon naked and hungry in the street, they aren’t quite sure what to make of the odd little boy. How could they know that he is actually a nine-tailed fox…or at least he would be if he hadn’t lost his tails in a bet? Now Laon is on a crusade to recover his missing appendages, if other spiritual forces don’t find them first!

In this adaptation of Spiral (Rasen), the legend of Sadako's evil takes a scientific turn as Ryuji Takayama's old college friend, Mitsuo Ando, must decipher a mysterious code while investigating this strange virus that kills people after watching a video tape. Disbelief gives way to fear. Logic bends to survival. And human evolution changes drastically. What Sadako plans is not simply horror, but something much, much deeper.

In this adaptation of Spiral (Rasen), the legend of Sadako's evil takes a scientific turn as Ryuji Takayama's old college friend, Mitsuo Ando, must decipher a mysterious code while investigating this strange virus that kills people after watching a video tape. Disbelief gives way to fear. Logic bends to survival. And human evolution changes drastically. What Sadako plans is not simply horror, but something much, much deeper.

A redrawn variant of Chapter 1: Tragedy.

A manga adaption of Devilman partly based on the 70's anime.

Ina is a timid girl who found herself in a parallel universe similar to her own. There she met someone with a completely different personality than herself, and guess what, it's herself—Ina. How will she live this new life in a new world.

A spy mystery taking place at the beginning of the Showa era.

The setting is a rural city in which kidnapping and series of murders are happening simultaneously. 8 years ago, a boy and a girl were kidnapped and brutally tortured by the hands of their perpetrator. The victims, the compulsive liar "Mii-kun" (the narrator), and "Maa-chan" (Misono Mayu) reunite and start living together, despite the fact that the recently reported missing children were within Mayu's apartment...

A girl is bored of her unchanging peaceful life, and goes to a house that is considered haunted. She meets a boy there instead of ghosts.

Young scientists, Raul and Olivier De Laune, are researching the potential of genetic modification and cloning, set against the backdrop of the early 1930s. At a University talk on their research, Raul is accused by a clairvoyant, who tells him he can only clone someone successfully if their soul is transferred also. That night, Olivier is found murdered with no trace of injury or method of death. The clairvoyant tells Raul Olivier’s soul was ripped from his body by some non-human creature. She shows Raul a vision of Olivier, who tells him to find the ‘Blaise twins’. Soon after, larger than life, soul eating wolves begin to appear in the city, killing people by taking their souls. Raul is falsely accused of initiating the wolves and is forced to go on the run from the police. Now its up to Raul, his research assistant, a clairvoyant, two flunky private detectives and a retired chief of police to clear his name, find the Blaise twins, find the cause of the wolves, and most of all, put a stop to them.

What do two Japanese detectives, a naked man on a city street, and a roundworm from Botswana all have in common? In the first volume of Manhole, Ken Mizoguchi and Nao Inoue investigate a string of bloody and mysterious murders, but their work uncovers a deadly biological agent which poses a threat of epidemic proportions. An unlikely lead starts them in the pursuit of a mysterious self-titled photographer, but meanwhile the infections keep spreading. The series may be best described as the thrilling combination of a detective story with biological horror.

Kitajima from Reset has a guest role in volume 3.

In the fifth unit of the special police bureau lies a group of special individuals known as the “SAKURA”. Formed for the purpose of carrying out secret missions, they gave up their nationality, erased their past and concealed their real identities. There will be no salvation for the “SAKURA” who failed in his mission, except for their one and only “Messiah” – the only existence that can pull them back from the path of death…