An ordinary, bored, bullied high-school boy. A mysterious, frail and cute transfer student who just happens to be a feared delinquent and studies the Chupacabra. They meet and start going out together. What can go wrong?

More collections of chilling short stories dealing with urban legends, ghosts and superstitions. Unlike the prequel, Fuan no Tane+ provides more continuity between chapters, and a few even have conclusions of a sort.

From MangaHelpers:

There is a hidden island that is a mecca for martial artists. There are different reasons people go there--because they want to become amazing at their art, or simply because they come from a family known for martial arts and they are sent there by their parents. In any case, new arrivals sign a contract that they can't leave for 10 years, and that contract is strictly enforced. Within the complex, there is a forbidden area...

Ro is a new arrival, and he was hoping to hone his skills. However, it seems to him that he's gaining nothing, and is just being required to drag himself down to the level of his inferior peers. One day, he opens the door in the forbidden area, and finds a boy who had been trapped there for ten years. The boy remembers little of his life before, and Ro names him "Kid." Kid is determined to leave the complex and search for his father. Maybe if Kid can get help from Ro and other new friends he makes, such as a sad, bullied young girl named Mugi, he will be able to begin his search! [tethysdust]

A collection of strange horror stories in the vein of authors such as R.L. Stine, from the master of absurdist horror, Takahashi Yousuke.

When a mysterious so-called meteorite crashes, a group of students gather to go and investigate it as part of their club activity. Low and behold, the meteorite is actually a futuristic, high-tech supermarket! What comes after is only weirder and weirder as they encounter more things that are out of this world. Follow these students as they go on supernatural adventures!

In a world driven by fictionalized friendship, courtesy of the program named "Real Account", the table suddenly turns, and the cybernetic world turns real! How will they survive?

Note: So... This manga is technically a two part... the first 10 chapters are part 1 and the 11 onward is part 2. In the past it's been split up into two series(Real Account & Real Account II).

Itou Kaiji is a bum who steals car emblems and slashes tires on what seems to be a regular basis. This routine changes one day when he is paid a visit by a man in a trench-coat. Once the two get talking, it seems that the visitor (Calling himself Endou) is a debt collector. The reason for his visit is an unpaid loan which kaiji had previously co-signed for a work-mate (Furuhata Takeshi). The original loan was 30000 yen and once Takeshi had disappeared, the loan then fell on Kaiji.

Kaiji is then told of a way to clear the interest compounded debt (which stood at 3,850,000 yen), which involved getting on a boat with others in his position. Once on the boat the debtors would then have to gamble with loaned money, which would end with a few winning, and others getting into deeper debt and having to work to pay of their debts. After some coercing kaiji accepts a position on the boat, in order to clear himself and make a bit of money as well...

From MangaHelpers:

Aizawa Katori goes to a school with an unusual rule. The nearby, separate school building is full of elite male students, and the school wants to prevent any of the female students from getting involved with them. For this reason, all the girl students are required to wear masks! Katori wears a horse-head mask, but she hasn't given up on getting through to her long-ago childhood friend and crush, Shinra. Shinra also has a crush on Katori from when they were children, but he does not recognize her as the strange horse-headed girl who speaks to him! [tethysdust]

Most of humanity has been wiped out by mysterious dark monsters known only as "Phantoms." Four survivors, who may well be the last of the human race, have found one another and are sharing a quiet, peaceful existence. These survivors are a kind, dependable teenage boy called Masashi, two teenage girls, shyer Sanae and bolder Yaeko, and a little girl called Anna. They feel as though they're just living in a perpetual "after school" state, waiting for the rest of the human race to come home. As they pass their days together, they begin to see some strange things and find that the monsters have not yet left the Earth. Will they discover what really happened to their planet?

The Kirionira are the demons that live in another dimension and invade the human world through people's dreams. The only defense humanity has against the demonic assault are the hunters who rely on their sex drive as a source of power to fight against them.
Riku Yoichi came from a long line of hunters and had high amounts of sexual energy which allowed him to be a great hunter. He moved away from his home town after middle school to demolish the Kirionira and was successful in finishing off the king and ending the battle forever. However, the peace came at the price of Yoichi losing his sex mojo.
Returning back to his home town, he soon learns that the demon invasion was not over, but without his sex drive, he is helpless to fight back. He tries convincing his childhood friend Namba Midori and her female classmates to get him sexually aroused, but they want nothing to do with it.

Mini Vanguard. A 4koma comic about the Cardfight Vanguard anime.

An odd collection of his Monthly Jump illustrations.

C'mon, smile more!

From ryColaa:

There are mysterious masked-men trying to conquer the earth!! And to defeat them, the state started a project team called 'Rebirth Knight'.

Kang Chan, one of the strongest high schoolers, meets a girl named Chaewon and falls in love at first sight. However, Kang Chan hears from Chaewon that she is a member of the Rebirth Knights, and decides he wants to be a member too...

From Manga-Sketchbook:

In the previous "Kung-Fu Boy" series, Chinmi became the master of Kempo at Dairin temple, where he trained disciples. When they lose contact with Kyorinji, a temple of the same sect, Chinmi is dispatched to the Kanan Autonomous region to investigate.

He tries to enter Kanan with Pushin, a swordmaster whom he met traveling to Kanan. But they are attacked after trying to enter Kanan and pursued by the Border Police who chase them into a waterfall. A fisherman saves them and aids their entrance into Kanan. The people of Kanan are forcibly oppressed by the government. Chinmi befriends the people and makes the big decision to free them with his Kempo. Sorabi Boru, Lieutenant of the Border Police and Jirai, the evil king of Kanan attack Chinmi...

The manga adaptation of the latest RPG in the Persona series from ATLUS: Persona Q: Shadow of the Labyrinth. One stormy autumn night, the P3 gang is bummed that Gekkoukan High School's Culture Festival was canceled due to the weather. But out of nowhere, they hear a bell begin to ring. The next thing they know...

A mysterious beautiful woman hosts a death match that results in either death or rebirth. Pitting an Expert who reaches the peak limit as a result from training against an Esper who awakens latent superpowers from within, the chosen players will bet on their lives with a fight to the death! There can be only one survivor.

Inasaki Komi is a popular highschooler, but what he did not expect was that someone like Sanami Nanai would like him. Although the girl is beautiful and a great student, she has a sinister aura around her. Now Inasaki just wants to find a way to get rid of Sanami, and it appears the best way to do this is to make her hate him.

Redix and Kai lived a simple life , but suddenly and for unknown reasons , they started some commits for riot in the region . Currently they are studying the last year of High school , So they decided to stop those works for the purpose of finishing school, However .. One day they escaped from school just for fun and playing around ! But suddenly for strange reasons they found themselves in another world seemingly devastating and empty of its inhabitants ,but who knows if there are other people in this world or not ? and why were they transferred to it ?

"You can do anything if you put your mind to it." That is how Mio was raised... if you could call it that... by her rather lazy guardian Reki. Born on an island she has never been away from, Mio grows bored of her everyday life... That is until Sarah comes along.

Sarah is a member of an organization that explores and manages many "Homes", islands much like Mio's. For Mio this is her ticket to adventure, excitement and the most interesting thing of all... school! But is the school ready for Mio?