Genre - Shounen

29-year-old programmer Suzuki Ichirou finds himself transported into a fantasy RPG. Within the game, he's a 15-year-old named Satou. At first he thinks he's dreaming, but his experiences seem very real. Due to his use of a 3-time-use special power (meteor shower), he ends up wiping out an army of lizardmen and becoming very high level. He hides his level and plans to live peacefully and meet new people, though developments in the game story (like the return of a demon king) might get in his way.

Light Yagami is an ace student with great prospects--and he's bored out of his mind. But all that changes when he finds the Death Note, a notebook dropped by a rogue Shinigami death god. Any human whose name is written in the notebook dies, and now Light has vowed to use the power of the Death Note to rid the world of evil. But when criminals begin dropping dead, the authorities send the legendary detective L to track down the killer. With L hot on his heels, will Light lose sight of his noble goal... or his life?

It was only a standard morning. Akira Shiroyanagi, a high schooler who cherishes diversions and Konpeito (Japanese desserts), has all of a sudden been hauled into a war zone by a baffling young lady who calls herself Mion. The members are informed that they are "eradicated from the family enlist, engaged with an analysis, and increased certain forces." Akira is resolved to win with his freshly discovered powers and devastate the association. Equipped with a power nobody expects and his "cerebrum" aptitudes, the new time of knowledge clash of starts!

"Debby the Corsifa" is a vicious demon that resides in the depths of Hell. She enjoys a good fight, but no creature in Hell can compete with her. She chooses to extinguish her boredom by eradicating humanity! But shortly after arriving on Earth, Debby runs into Rokurou Sugo, a similarly bored human, just as he can be heard wishing for a game partner. Debby challenges Rokurou right away to a battle that he has little chance of winning, much less surviving. Rokurou, fearing for his life, challenges her to a game of "Old Maid" as a safer and more effective way to pass the time. Debby reveals herself to be an airhead who is only fit for brawls, despite appearances! Debby persists until she defeats Rokurou in a game, regardless of how many times she loses.

Mephisto Bart Kucabara is a devil lawyer. In order to return to the demon world that he was exiled from he needs to collect enough Dark Matter. To do so he creates a plan to claim the Dark Matter from the souls of sinners sentenced to hell. Prove the soul\\\'s innocence and the Dark Matter becomes his. But how can he gather enough Dark Matter when his kind personality causes him to continually use it up in order to defend the soul from the Shinigami that has come to take them to hell?

Demon almost succeeds in conquering the world but is then defeated by the Hero and is sent to modern day Tokyo. Having no skills to survive in such a world, his adventure to live begins

From DrCoke at MangaHelpers: Humanity has found the perfect energy source that gives the wielder near god-like powers. This energy source has been named "Demon". The rare individuals that have the capabilities to wield this power are known as "Mediums". To become one of the Mediums, Taichi has transferred to the Meissner School. On the first day of transferring into the school, he literally runs into an energetic girl named Nui. She is a Medium and attends the Meissner School. Taichi will require her help to become a Medium himself and survive against hostile Mediums.

Demon's Plan can give you anything you want. It is a sacred object that grants anything the chosen one wish for. Who will be the chose one and what is his greatest desire? Source: Mangafreak

Following the untimely passing of his childhood friend and his little sister, Io Haruomi is constantly haunted by their deaths, forever feeling powerless and unable to escape the guilt he feels for letting them die. Despite this, he continues to press forward, attempting to enjoy an ordinary life. He goes to high school, hangs out with his friends, and generally passes off as a normal 2nd-year high school student. One day, however, Haruomi encounters an "Eda", a girl with glowing red eyes and demonic powers. Amidst her escape from the "Seven Great Gospel Organizations", she reveals that he too is an Eda, and the powerlessness he feels is completely unfounded. Before he knows it, Io Haruomi is thrown into the middle of a battle between man and devil. And as his eyes too begin to glow red, the side he is on is no longer so clear.

Kagami Junichirou was known as a physics genius when he was a teenager, and he was even published in "Nature." However, after college, he suddenly lost all interest in science. As a NEET, he's devoted himself to his anime blog and nerdy collecting habits. He claims he has a serious illness called "I can't do anything I don't want to do." Desperate to get him to do something with his life, his little sister manages to get him a job teaching physics at his old high school. He's certainly an unconventional teacher, but he becomes fairly popular with the students. After helping a girl who's being ruthlessly bullied, Kagami finds that he actually likes teaching. Will he continue his career as a weird teacher? Will he go back into physics? Or will he end up back where he started?

A mythical story with swords and magic centering around one lethargic Roland Empire student named Ryner Lute. After getting dragged into a war and losing many of his friends, Ryner is asked by the soon-to-be enthroned king, Zion Astal, to help rebuild Roland postwar by searching for legendary relics. Accompanying him is a beautiful, capable, yet arrogant swordswoman named Ferris Eris, who’s always quick to insult and abuse Ryner. Meanwhile, a new turmoil begins to approach Roland.

In the world of [Man Huang Ji], to survive, tribes of humans have to fight against the forces of the heavens, the earth, and demons. To live long and free, the three great disasters and nine robberies sent death without regret to the immortals. Then one day, a boy named "Ji Shi" was born to the strongest tribe in Yu Ji. As a direct descendant, he bears the responsibility to protect his people, who grow to respect him. With an iron will, he begins the long journey of an immortal guardian.

Some communities have given Mitsuki Kou the moniker "Crim the Headhunter" because he is such a feared PVP player. His next game to dominate? " Destiny Unchain Online," a brand-new multiplayer online role-playing game created by Kou's father. Yet, no new game on discharge day is without its bugs - specifically, Kou errors to the center of no place, and his vampire symbol is transformed into a young lady! A tale for all gamers who have made new friends and aspired to the top through gaming—start!

16 year-old Kudo Shinichi, a famous High school detective, treats his friend, Mori Ran to a theme park named Tropical Land. After solving a murder case that occured on the same day, Shinichi notices and tails two people in black. However, one of them notices Shinichi and knocks him out. Instead of killing him, they gave him an untested poison that was supposed to kill him yet leave no traces. However, instead of killing him, it shrunk him into a 8 year old boy. Shinichi now goes under the name Edogawa Conan.

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.