From Perpetual Dreams:

7th grader Oshiro Shinobu, the daughter of one of Japan's old family lines, was separated from her parents due to certain circumstances when she was only six. Because of this she now lives with one of her distant relatives, Kouda Shougo, who is a teacher at the school she now goes to. Apparently, a childhood friend by the name of Oku Saizou is transferring into Shinobu's class, but wait... This timid and hesitant boy is actually a ninja who serves Shinobu and he has transferred for the sole purpose to protect her...?!

From Nagareboshi Manga: The protagonists, Hinako, Makoto, Yoshi and Yuki, are standing up!! One day, the four are called to the principal's office and shown some scary graffiti that had been put up on the school wall. One reads, "I'll kill Shinozuka Makoto". It's their job to find out who did this, and who's after Makoto. Near-death experiences and mystery await!

A tale of mystery and magic. Naito and Yuta Fuuga are twin brothers with very different personalities. While Naito is elegant and good in school, Yuta is athletic and often winds up in fights. Despite this, they maintain a close relationship. When their father turns up missing, both must travel to Dubai in search of him. A mysterious peddler has other plans though, as the twins soon find themselves in the world of One Thousand and One Nights.

When he was young, Kurosu Keisuke was in a special TV program showcasing children with supernatural powers, called "Esper Shounen". Seven years after the termination of the program, a murderer appears to be targeting the Esper kids, whom he/she considers to be monsters. Will Keisuke and his old friends be able to discover the murderer and avoid becoming the next victims?!

From Easy Going Scans:

A watch that controls time, a marble that can find items and a stick of chalk that can kill any human...

The items of the mysterious girl, List of the antiques, all hold their unique magical powers. Without our noticing, they slowly merge into our daily lives.

If you strain your hearing you might discover the mysterious secrets hidden throughout the world. The curtain of this antiques fairy tale finally rises!

From Easy Going Scans: Five different people are gathered in an abandoned hospital after getting a mysterious phone call, and the mastermind behind the curtains holds their families hostage. He orders them to figure out the one culprit who killed his brother... Or otherwise, they will all die.

From Easy Going Scans:

Minato Kujou is a cynical and sharp tongued young man who has no spiritual abilities at all. He is looked down upon by others in the spiritual profession and referred to as the 'Zero Ability Individual'. Despite his reputation, he has a surprising way of defeating the monsters known as 'spectres'.

Cross Academy is attended by two groups of students: the Day Class and the Night Class. At twilight, when the students of the Day Class return to their dorm, they cross paths with the Night Class on their way to school. Yuki Cross and Zero Kiryu are the Guardians of the school, protecting the Day Class from the Academy's dark secret: the Night Class is full of vampires!

From MangaHelpers:

In response to a decrease in population, human corpses have become a major resource for society's labor pool. Necromancers are needed to animate corpses for various jobs. These corpses work reliably unless they encounter human love, at which point they go berserk and attack. Zen is the necromancer of his city, and he spends his time animating corpses and dealing with the messy aftermath of those cases of 'necrophilia.'

Zen has a strange assistant, who keeps his face covered and never speaks in public. This assistant is Yomai, a ghoul that Zen took under his wing. Zen allows Yomai to feed from his own flesh, but he has strictly forbidden the ghoul from revealing himself to, speaking to, or eating other humans. Yomai doesn't want to anger his benefactor, but he is not completely satisfied living under all of Zen's restrictions. There's plenty of violence, death, and surprises ahead for the necromancer and his ghoul! [tethysdust]

Naegi Komaru, Naegi Makoto's younger sister, managed to survive despite being outside Hope's Peak Academy. There she meets Fukawa Touko, a.k.a. Genocider Shou. This is the story of their struggle to survive in a world full of despair.

From Shoujo Manga Maniac:
Ruri is desperate to see the mysterious jewel thief Kaitou Crow. If she becomes a jewelry model, will she be able to see him again when he robs her?

From Mangascreener:

The main character is Leonora, the daughter of an impoverished noble of Padua. She is a beautiful silver-haired, emerald-green-eyed girl and very good at fighting with the sword.

One day, she is forced to marry an arrogant young noble, but she discovers on the day of their wedding that this man intends to use her to become king of Italy because she is involved in an ancient Italian legend: Leonara is the girl shown on "Kakan no Madonna" (Madonna of the Flower Crown), a famous painting drawn by Leonardo DaVinci. There exists a legend that tells whoever gets the legendary sword "Emerald Lion" will unite and rule over Italy. And the secret hiding-place of the sword can be found with "Kakan no Madonna"--that is, Leonara.

In order to find out the truth of the portrait's secret related her and to hide her identity as Kakan no Madonna, Leonara disguises herself as a black-haired boy, Leo, and sets out to find DaVinci. On the way she meets Falco, the blond-haired handsome king of Naples, who is unaware that she is a girl, and becomes his servant.

When she finally finds DaVinci, she hears with surprise that she - the girl portrayed in Kakan no Madonna - is destined to possess the legendary Emerald Lion and therefore to become queen of Italy.

From Aerandria Scans:

Venice, the latter half of the 16th century. Young Legare works as an apprentice to his father, an apothecary, but his real passion is the forbidden art of Alchemy. One day, a fortune teller predicts that he will meet four people with the power to change destiny and shortly after, his father is incarcerated on suspicion of alchemy. Legare, the real alchemist, is forced to produce gold for the person who arrested his father. Follow him through the mysteries of Venice, through his struggles, his encounters with powerful friends and enemies, and his search for the Philosopher's Stone.

A collection of illogical plot lines.

From MyPersonal-scan:
From his late grandfather Viscount Disward, Huey has inherited The Mystical Library of Dantalian, a collection of powerful Mystical Books demonic and supernatural. Together with the dark and mysterious Dariane, they pursue Mystical Books scattered across England. Their adventure begins here.

A young man sits in the inner room of a library, diligently restoring old - but valuable - books to their former splendour. An enthusiastic, upbeat young police officer often comes to him for help with hard-to-solve cases...But what exactly is the mysterious skill that allows this man to unfailingly discover the truth lying in places that even the watchful eye of the Law has failed to penetrate?

From Ciaran Hillock:
The story features Colonial Operator ROCO143, Jolie, finding a paper airplane floating through space. It's a nice story because the paper airplane in the comic represents humanity's dreams and visions of the universe.

In the 2020’s the Japanese female culture was extremely corrupted in the eyes of the first women prime minister. To bring back the beauty of Japanese femininity, she created the Amazon Academy, a girls-only school, on an artificial island isolated in the middle of the Pacific Ocean.

Amesu Kumi just transferred into Amazon Academy to investigate the death of her older sister, Towa, who also attended the school until she died in a shroud of mystery. The only clue she has is the name Burai Sachiko left in Towa’s cell phone. How could Kumi have known that the school literally turns into a battlefield when classes are over; where petite girls beat each other senseless in order to survive?

A cataclysm has destroyed the cities and empires of men and disfigured the spirit of humanity. In this nightmare, it falls to him to descend a mysterious tower in search of absolution. Is the angel correct that he is responsible for the destruction of the world, and what can he do in this monster infested world to redeem himself?

Based on the Saturn/PSX/PS2/Wii game Baroque.

Twice a month, a freight train carrying new migrants arrive in Sakia. According to a new civil rights law, ex-convicts are given the right to voluntarily erase their memory and live here.

As a purification city, this civil rights law began to be expanded to more people. Many of us criminals now living in Sakia only knowing ourselves only as immigrants.

But Estancia, they say we will be forgiven if we reach Estancia.