Two lonely siblings, Sophie and Benjamin, have been taken in by new foster parents. While exploring their surroundings, they come across the ruins of a mansion from a bygone age. Can the bloodsucking lady of the house spare them some time?

In 2024, mankind's insatiable appetite finally opened the Pandora's Box of technology, releasing the long-sealed demonic seeds and catalyzing the process of life's evolution. The irresistible catastrophe instantly annihilated the entire human civilization, leaving behind only the scorched earth of steel and iron, a symbol of the former prosperity, and the survivors who lingered on top of it. In this chaotic world of collapsed order and crumbling faith, can humanity unite to rebuild civilization? In this devastated wasteland, the heroes representing various forces pass a number of tests to complete their own redemption and finally embark on a difficult journey to find the truth of the end times.

From Easy Going Scans:

Crimes commited using manned combat-androids dubbed "Katana" run rampant.
In an effort to maintain order, the government has organized the AKCD - "Anti Katana Crime Division."
Togusa of the 8th squad of the AKCD, while holding existential doubts as a Human-Katana hybrid, continually casts himself into battle...

One day, Kosaka Mitsuki was abruptly sent on a trip to a different world. She was an otaku, so she adapted really fast. Then she decided to live her life as a magician.

She made a living by making full use of the benefits of the automaticly translated knowledge and language of her original world. But reality was harsh.

She was keenly aware that she was handling ‘Bishie’ from this different world who could easily conquer a maiden hearts and dreams.

A spin-off manga created by Toyotarou, and based on the arcade game Dragon Ball Heroes. It debuted in the November 2012 edition of V-Jump, the release date of which was October 20, 2012.

http://dragonball.wikia.com/wiki/Dragon_Ball_Heroes:_Victory_Mission

From Yo Manga:
The main character Jae-Jin has problems getting an erection, but he gets a lucky opportunity that changes his life. Except this time, his boner won't go away? What is he supposed to do?

A dark romance about a high school boy who falls helplessly in love with a beautiful girl who has to eat people to survive.

A side story of No Game No Life focusing on Izuna Hatsuse and her daily life.

After Wiz wastes all the money Vanir made from Kazuma’s patents on high quality Manatite, Vanir is forced to take up a job in consulting to pay the monthly rent of the shop.
Aqua couldn’t fall asleep, and decided to invade Wiz’s shop to inquire about her and Vanir’s past.
Various characters consult Vanir for help.

A strange reunion with his first love.
Stowed away deep in his heart
The continuation of that summer break ――
Set in Tanegashima
Where the past and present will intertwine
A brilliantly heart-wrenching adolescent love story.

Due to the magical essence leaking out of the new dimension that opened up within this world, all living creatures started to mutate into monsters. However, the remaining survivors of the human race were able to reduce the effects caused by the magical essence, and the world became divided into two factions. The “New World”, and the “Under World”. Because of this, the people left behind in the Under World became adapted to their surrounding environments, and evolved into a new species. These people became known as the “Under People”, and they seem to be far more superior and powerful than the human race…?

Based on a Novel "Without Reservations" ("With or Without" series vol1.):

Sometimes love just catches you by the tail.

Chayton Winston is a veterinarian. He is also a werewolf. Much to his Native American parent's chagrin, he has always dreamed of a fair-haired, Caucasian mate. However, he never imagined his mate would be male. As a heterosexual man, he's not quite sure what to do with a male mate, but more than willing to find out.

Keaton Reynolds wakes up, in wolf form, and finds himself with a mate. He's instantly attracted, but not so thrilled to find out the man is straight. Having been in a relationship once before where his partner professed to be "Not gay" left a bad taste in his mouth. Keaton wants to make a break for it and pretend he never set eyes on Chay-but Chay is not ready to let him go.

Together the two work to solidify their shaky relationship and battle the prejudices against homosexuals. Chay must deal with not only his mother's prejudices against gay men but also her hatred of white people.

When a power struggle in Keaton's pack threatens Keaton's life, the two men learn to depend on one another and their relationship to get them through it.

BOZEBEATS is a "priest expelling demons action" story that centers on a priest (bōzu) who lives alone on a strange mountain, when he meets a young man who was raised by wolves. [ANN]

The Masters of Murim lives hiding in plain sight!
But robot humans are hunting them down!
A random boy gets caught in middle of all this and this is his survival story!

Takeru Gakusha was a aspiring writer, until the universe exploration missions started, he decides to apply for these, but in the meantime he meets someone who changes his life by taking him in as a "Teacher" at the Yokai Carecenter, meets people who he will love for the rest of his life and is sent to space in the meantime, how will he communicate with the people on earth and will he survive this missions?

Gaon is a boy who turned into a vampire, having inherited the condition from his mother. He discovered that his one and only friend, Dong-yi, likes his older brother.
Gaon loses all control when he smells the scent of blood. Aware of his unstability, he asked Dongyi for his help in order to safely graduate college, and in return promised to help him get closer to his brother. However, to the contrary of his plans, the possessive, cold-hearted Yohan came to take an interest in Dongyi, and the budding relationship between the two is slowly starting to get on Gaon's nerves.

From Stiletto Heels: When Midou Ginnosuke lost both parents at the age of ten, his grandmother decides to take him in. He goes to live with her and her pet cat, Anzu. Life was peaceful for a time and all was right with the world, until he wakes up one morning and discovers that the girl with cat ears lying beside him is none other than Anzu, who has transformed into a nekomata (two-tailed monster cat).

Class-president Sakura Teshigawara tries to get the new transfer student Shosuke Samon to join a club or found his own as he is always alone in class. He got off the wrong foot with the class after claiming that his favorite Hobby was "summoning Demons".
Samon becomes interested in her after he learns of her being a "good person" including her image as an Angel. So he invites her to the roof to talk about something. Thinking he is about to confess his love she gets excited at first, until he tells her that he hates her because she is such a busy-body and a goody-two-shoes. That would be the end of it, if not for a small detail: Samon can actually summon Demons and decides to get her to show her true colors by saddling her with Demons to tempt her into acting slothful or gluttonous for example. Watching greedy people getting corrupted by demons is a favorite past-time of his after all. As the Demon world is pissed at Samon because he summons Demons so often, Assassins are sent after him and his perceived associates.
He defends Teshigawara from one such attack, because he wants to witness her downfall and a violent death is too boring.

Sonoba Shinogu is the owner and chef of a restaurant called "Heaven's Door," an ordinary and not very popular restaurant. He has two part-time workers who dress as maids, Maeda Atari and Ariga Chie.

Through some weird quirk, famous people from throughout history start arriving as customers. These people are transported through time and space to Heaven's Door, just before their deaths, and Shinogu has to figure out how to satisfy their order for their last meals.

Famous visitors include Japanese historical figures, like Oda Nobunaga and Ryoma Sakamoto, as well as foreigners like Marie Antoinette.

The manga follows the adventures of the characters of the world of Toaru Majutsu no Index as they stumble into hilarious shenanigans in 4 panels.