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Toshiki is a below average student and often the target of ridicule. He accidentally runs into a shop sign and breaks it, when he enters the shop he finds out it will sell him abilities.. But these abilities don't come cheap.

From MangaHelpers: Natural selection has created a deadly new species known as "Eclipse," who are driven to eliminate humanity. A scientist called Kurusu Kenji headed an organization whose purpose was to fight these deadly creatures of bone. To this end, he created the "Osteon," Eclipse-like creatures that obey the commands of the human from whose DNA they are created. Now Kenji is gone, and his assistant Kidogawa Rokuko is attempting to recruit his estranged teenage son. Kurusu Akira wanted nothing to do with the father that he believed abandoned him, but attacks from Eclipse force him to accept his own Osteon from Rokuko. He slowly finds himself drawn into the organization, whose members expect him to take his father's place. Akira and his Osteon may have little interest in protecting humanity, but they are determined not to be beaten! [tethysdust]

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This is an original story expanded from the STEINS;GATE game, and focusing on the heroine Amane Suzuha. In 2036, a monopoly on time machines has created world peace, but at the cost of human liberty. Suzuha has followed in her late father's footsteps in fighting alongside the Valkyrie rebellion force to change the world. After the group fails on a major mission, Suzuha has almost no hope left. But then she discovers that her father left something for her: a time machine. Using this, maybe Suzuha will have the power to finally destroy this dystopian society and create a better present and future!

A seminal history of Date Masamune. Yokoyama has a plain and matter of fact style for history without really trying to dramatize it.

From Lovers Dream: A high school boy and a female student spend the night in a hotel after drinking a little too much... ... without being able to remember what may have happened between the two of them! Three months later, the female student comes back to the young man telling him she might be...pregnant...?!

This manga is full of short 4 panel storys that are just to make you lol (i only advise you read it if you have seen the .hack// anime's / played games or read twilight manga)

.hack//Alcor takes place in the online game 'The World'. Nanase is a shy and naive girl belonging to the newbie helping guild 'Canard'. All she wants is to be with Silabus, the guild master whom she has deep admiration for. However, when the guild members are targeted by player killers (or PKs) from the guild Kestrel, will Nanase be able to brave the situation?

It is the year 2017, and the stakes have gotten even higher in the massively multiplayer online game The World--now The World R:2, a dangerous place overrun by player killers, where lawlessness abounds. The PKK Haseo, known as "The Terror of Death," is a fearsome foe who punishes those who want to slay other players. But things have gotten personal as Haseo tries to track down the killer Tri-Edge, who has threatened the real life of his friend Shino... ~Summary by Tokyopop From Baka-Updates: G.U.+ follows the player Haseo, a powerful PKKer known as "The Terror of Death". Haseo is obsessed with an infamous PKer known only as "Tri-Edge" who attacked a close friend of his sometime in the past. The manga details Haseo's search for Tri-Edge, and his eventual inclusion in a mysterious group known as "G.U." Back story of the ps2 game (same title) In 2015 a fire at the main CC Corp. building resulted in the loss of a lot of data, and The World was forced to shut down. By splicing in data from what would have been another game, CC Corp was able to rebuild the game system. The next year, "The World R:2" was released, but many old players objected because they were unable to bring over their old characters. However, many new users were drawn in by the new style, and over 12 million copies were sold. Though not a match for the previous version's 20 million users, it became the top-selling netgame on the market." As a result of the new world, four major clans (Kestrel, Lunar Tree, Canard, and Raven) came to power. The clans actions shape 'The World', and most players end up taking one side or another during conflicts.

The story takes place in the year 2020, just three years after the events of .hack//G.U.. (The story will take place not only in the new version of "The World" known as "The World R:X", it is a popular game ) but in the real world as well. The lead character is a middle school student named Tokio Kuryuu. He lives a normal life as a gamer until a mysterious girl named Ayaka Amagi transfers to his school and takes him in the game world .

Our protagonist, Inoue Konoha is still being led around by his senpai, the Literature Club's President, self-acclaimed "Literature Girl" who loves stories so much that she can eat them, Amano Touko. 　One day, someone put in the Literature Club's "Love Consultation Post Box" a bunch of paper scraps that have the words like "Hate", "Ghost is" and a bunch of puzzling numbers on them. Calling the act as "picking a fight with the Literature Club", Touko once again got Konoha involved in her investigation; but when they found the culprit, this girl turned toward them, smile, then said "I'm already dead." 　The 2nd arc of the popular bitter & sweet school mystery series.

(Summary from here): Wakamatsu Masato lives with his step-sister, Miyuki, whom he does not have blood relationship with. Their father is always working oversea (in fact, he has not appeared in the manga at all...) and left the two of them living by themselves in Toukyou. Miyuki is cute, nice, sensitive and very popular among guys around Masato. Masato has a girlfriend at school whose name is Kajima Miyuki, who is pretty and gentle, the ideal dream of every high school boy. It took years for Masato and his sister to realize whom they love and care most after a lot of events. The manga is very nicely written, with excellent layout, interesting story and character developments, refreshing art style and filled with youth and emotion. It also shows the dramatic improvement of the author's skill.

In a parallel world where the strongest of the non-diary holders "Akise Aru" takes the place of Yukiteru ( The protagonist from Mirai Nikki ) for a few days, what will happen?

From Cireus-Scanlations: Tanlou is one of the roaming Blair tribe: a stubborn lot who keep to themselves and frown upon interaction with "outsiders". He, along with six of his friends find a young princess from a nearby castle, wandering in the forest. She begs them to help her, but their help comes with a price. Tanlou is cursed by the head of his clan, and the seven men are banished. Still, they feel compelled to help her. The princess' name? Snow White. After a vicious battle to regain Snow White's kingdom that leaves the princess gravely injured, the evil queen unleashes her wrath, and the unthinkable comes to pass when two of the seven mysteriously disappear, leaving behind five bereft buddies who have no idea what has become of their comrades. And thus begins the plight of Tanlou and his friends...

From MangaHelpers: This is the official comic based on the game of the same name. An all-girl's school is preparing to consolidate with another nearby school, which will make them co-ed. Uryuu Shingo is chosen to be a male 'test student' at the girl's school before they officially merge in the following year. On Shingo's first day, he learns that many of the girls are not happy about the coming merger. Specifically, Seno Airi is staunchly opposed and refuses to welcome him to the school. Some of the other girls are friendly, but Airi has a lot of power over public opinion. The truth is, though, that Shingo has met Airi before. When she and Shingo's little sister got lost, he helped them find their way. Airi seemed to like him then, back when she didn't know he was going to be her new male classmate. Maybe he'll be able to win over Airi, as well as all his other interesting female classmates! [tethysdust]

From CPM: Narue is an adorable schoolgirl with a secret. She's really an alien with powers right out of a sci-fi comic! But growing up is never easy, and sometimes it doesn't help when you're from outer space. Join our spunky heroine as she faces androids, alien invasions, and (scariest of all) her very first date!

From MangaHelpers: Inuzuka Taromaru is a first year high school student who looks like a delinquent. One evening, while he's at his part-time job, he ends up with a white-feathered arrow through his head! He's told that this arrow means he has been chosen as the sacrifice for "Inugami-Hime," who lives on top of the nearby mountain. However, this mysterious "Inugami-Hime" turns out to be a cute girl who has chosen him to be her servant, not her sacrifice. Their life together is just beginning! [tethysdust]

The stage is Kyoto. Takiguchi Tsuina is a girl possessed by a curse that brings misfortune upon all those she falls in love with. Such a girl falls in love at first sight with the newly transfered Mikado-sempai, who is in fact an exorcist of the Department of Prevention of Supernatural Disasters. In order to walk along the same path as the one she loves, Tsuina becomes an apprentice of the wandering exorcist, Izuna. Note: This is the story of the two newly appeared characters, Takiguchi Tsuina, and Mikado Mine (who make their debut in volume 8 of the original series).

If you wished for your own death, how would you like to go? Here is one boy's encounter with a grim reaper...

From ADV: Buyer beware - when video game obsessed Kaito Suzuki mysteriously receives a game called Gamerz Heaven, he gets a lot more than what he bargained for! Not only is he playing the game, he finds himself being sucked into it! With a boy named Nata serving as his "Navigator" in the game, Kaito will have to eliminate all of the monsters before he can enter the Second Zone. Things become difficult when Kaito realizes that losing this game had deadly implications for the real world! Baka-Updates has this series marked Complete/Discontinued

Takenori is a major fan of Dating Sims. One day, he receives a strange eMail that tells him he can be the main character and asks him to insert the source material for his new world. Takenori inserts his favorite Dating Sim "Eternal Innocence" and after strange things he mistakens for a dream, wakes up - to find that all the heroines from Eternal Innocence have come to life in his usual surroundings!

During his free time in Okinawa, Ken is suddenly forced to couple up with a girl.

Debochi Amon (14) was always a passionate boy and had a tendency to literally steam up. Amon was living a normal life; going to school, hanging with friends and thinking about his crush on his classmate, Shinomoto Sako. One day, a third eye opens on his forehead after one of his usual “steaming” incidents and a talking owl creature who calls himself Goomin appears. Both characters are confused at the situation at hand and Goomin finally is able to explain the situation to Amon. Amon now possesses Pyrokinesis and his power of his fire increases when his passion grows. His emotion of wanting to protect something, like his crush Shinomoto, triggers the transformation into a demonic figure and his flame is powered through greed. Now, Amon must learn to control and use his powers to protect the human world from Angels!