From the Animeraider:

Have you ever read a manga and thought to yourself, "Why the hell did he do that? It's not what I would have done. I could do better!" Well, now here's your chance. This manga changes storyline depending upon choices you, the reader, make. Have fun!

"Do Your Best, Chrono-kun!" is a short manga that was included with the Japanese game guide. In full-color glory, this manga recreates the beginning of the game, where Chrono meets Marle during the Millenium Fair. The art style is a fair imitation of Akira Toriyama's, a plus for those who are so inclined.

Nonaga Hiromasa is an up and coming soccer coach who has made a name for himself for bringing multiple teams from literally nothing to the top in the country. What’s even more impressive is that he just entered high school! He was recruited into his current high school as the new soccer coach, and his observation skills and ability to predict the opponents’ movement make his sole presence enough to win games.

The fact that Hiromasa is going to be coaching at the high school has many top soccer players flocking to this school, but none stand out more to him than Sakamichi Kappo. Not only can Kappo score a goal from half field with his powerful kick, but his ball control is second to none. Initially, Kappo didn’t want to play on a team because he thought no one understood “his soccer style,” but when Hiromasa was able to understand it, Kappo decideds to play for the team. Will the brilliant coach and the talented player be able to take the high school soccer world by storm?

In a school where after school activities are mandatory among all students, Hajime and her friend Sayo come across a new club that they have never seen before. The club is called "The Cultural Activity Preservation Club." The two enter the room to find all kinds of analog jobs and activities, such as handcrafting mats and toothpicks. This is a unique cultural manga mixed with comedy so as not to bore you, this is Double J!

A touching story of a doctor who wanted to help people even though he became a vampire.

The story follows Erina's route in the Dracu-Riot game. Erina is a foreign vampire from Russia and she is very ecchi, her conversations often involve ecchi stuff which makes Azusa really edgy and Yuuto nervous.

This story acts as a sequel to the original "Dragon Quest Monsters" game for the Gameboy. Kurio, a child who wishes to be a hero, is thrown to a world where monsters are found all over, and is asked to become their new Monster Master hero since the great tree is withering, the monsters are going berserk, and Terry, the previous monster master, has gone missing.

The year is 2029, and Hibino is an ex-police officer who now makes a living running errands for the leader of what appears to be a high-end gang. But how do a civil uprising in Niger, the attack on a radical military figure in Japan, and a bone-marrow thief tastelessly dubbed "The Vampire" connect Hibino to the mysterious white-haired boy who is forever confined to an enormous library reading through scores of books?

From DrMaster:
After his mother's death, Kuro Takagi transfers to Yotsuji Private High School where his father is the proprietor. But Yotsuji is no ordinary school. It holds a strange rule of “No students on campus after dark!” On his first day of attendance, Kuro and his classmates inadvertently break the school’s highest protocol and find themselves victims of a faculty zombie attack. Although they manage to narrowly escape, this is but a prelude to more encounters with the undead, especially after Kuro discover his own blood-ties and latent zombie abilities. From there, it's full steam ahead as this dark and intense action/comedy shifts into high gear.

Date Bashira is a series of stories about the Sengoku era in Japan. However, unlike most textbooks and historical mangas, Date Bashira does not focus on the Shogun or famous figures in history. Instead, it brings to light the untold stories of the things surrounding these famous figures. For example, one story tells about the role of how beautiful young men were always accompanying the shoguns into battle. As women were not allowed into a battle zone, the warlords would use these teenage boys to satisfy their sexual urges.

A different chapter tells the history of the wives of the Shoguns and focuses on the female role in the Sengoku era. As young women were forced into arranged marriages, usually as peace offerings or spies, their husbands usually die in battle at a very early age, as it was the era of war. Date Bashira discusses the idea of remarriage for these women and if they were really in love or were playing the role of a wife.

Date Bashira takes a different perspective at one of Japan’s most talked about era and even though it is informative, you never get the feeling of a lecture. The beautiful artwork, splash of comedy and the untold, yet interesting historical information really keeps the reader glued onto the pages. [vyc, mangahelpers]

Juju doesn’t remember anything – not even his name (it was the writing on his coffin) – and yes, he’s already dead. But he’s been revived and introduced to Liila – a girl with prehensile hair and his right hand has been replaced, so there must be an adventure ahead!

(From NatsuYume ver. 1.)

This series is loosely based on the anime: Satoshi aspires to be a Pokémon Master, and together with the various friends and Pokémon that travel with him, embark on many adventures.

Note: The manga was edited and censored by VIZ in its english release, since its original content was found too "offensive" by the American public and was made more "kid-friendly."

Above the Earth, there is a continuous battle between angels and devils. One devil in particular, Sword, has it in for a certain angel, Ios. In their 101st fight together, both are severely wounded. Not only that, but their clashing power causes the two to fall to earth. By chance, Sword finds a beaten, unconscious teenage boy nearby, and he is able to take over the human's body to save his own life. Some time later, Sword awakens in the hospital, briefly confused about his whereabouts. The father of the body he possessed enters the room, extremely happy to see his boy Souma alive. Then the older twin brother shows up. Immediately, Sword recognizes his enemy's energy. Also nearly dead, Ios had joined with Kanna's body. Sword goes to attack Ios, but quickly realizes that the body is far weaker than his demon form, especially from being recently beaten to hell. Since the brothers had been found heavily thrashed, their memory loss isn't that surprising. Their large change in behaviors is also explained by amnesia. As it turns out, Sword entered the body of the cliché nerd who can't run fifty meters without falling. Ios's new body is a terror, feared by all and constantly suspended from school. While the angel and devil have primary control over the bodies of the twins, reflex actions and memories of the other souls (still alive within the bodies) do appear. More importantly, the human bodies cannot handle the powers that Sword and Ios had used with ease. This a problem especially for Sword who is both over eager to use his powers and targeted by devils and angels. Taken from doushi-sumeragi.net

1-7. Colorful Hayate no Gotoku!
8-16. Hayate no Gotoku! Limited
17. Hayate no Gotoku! Dai ?-wa (Hayate no Gotoku! Chapter ?)
18. Hayate no Gotoku! Prototype
19. Hayate no Gotoku! Variety

About a boy of thirteen years who always tries to be a hero and for various reasons are involved with monsters, ending in his death, but it revived with the help a little thing (one might say that is the predecessor of innocence) and now must fight the Count ancient.

Naruyuki Touya, young student, arrives at Amagiri Gakuen, his new highschool. He finds himself on the quay of the station faced to a robot out of control and is attacked by a girl and then a classmate.
Who are they? How come the girl knows his father?
And what is the connection with him and this highschool?

From Dan of Population GO:

Ooba Asa woke up one morning and became an invisible man. It isn't just him, but various students around school have been gaining superpowers while his little sister has been losing the same powers. Supposedly the student council president is giving out superpowers, Ooba Amime's powers, so Asa, Amime, and the grudge-filled flame girl, Daimon Yaki, form an uneasy alliance to give the mysterious student council president.

Kai was living a peaceful and secluded life with his special martial arts teacher Gankutsuo, until the day he rescued a beautiful girl, Lee Shuurei, who was tumbling down a waterfall. He has no idea what she means when she asks about a "Tenraimon", but Kai is soon drawn into her problems when her pursuers arrive. Meeting her will change the course of Kai's life!

From a place in a different dimension from Earth, a world called 'Lote'. It is a world of androids, comprising of a queen, princess, rook, bishop, and knights under the command of a main computer. However, one of the main computer, the princess suddenly disappeared and the world of Lote falls into chaos. In order to find the princess, the head of secretary, Dion, travels to our world, Earth. There, he meets a high school student SeoYoon, and from this incident the life of SeoYoon takes a 180 degree turn...!! - Translated by Grumpy from Naver Manhwa

[From StudioRobb]:

It's the story of a young student named Sahra who comes from a broken home. He has a difficult time getting along with his classmates (or, more precisely, he doesn't *want* to get along with his classmates), until a girl named Mai Omi decides to make her mission to help him feel accepted.