Lim Sejun, who likes to eat, is fat and has a large physique. He has high self-esteem and a firm personality that doesn't even care about being teased for being fat. He has only one friend, 'Seo Hajin'. She has always been learning Jiujitsu to protect Sejun since childhood. One day, Sejun has trouble with a delinquent in the same class, and Hajin sees it and destroys that delinquent. But one night, Hajin is found severely beaten and suffers from a badly injured knee and more serious psychological trauma. Sejun tries to tell the police, but when the investigation doesn't make much progress, he can't control his anger and goes to find the culprit himself, but he's defeated by the delinquent who learned Jiujitsu and finds nothing. Then he learns Jiujitsu from a man named 'Jason' who saved him. Three months later, Sejun, who learned Jiujitsu and lost weight, finds out that a veiled group is involved, and wants to destroy it. A school action drama depicting individual revenge.

From MangaHelpers:

History classes have never interested Saburo. He never saw the point of learning something that happened in the past, let alone a few hundred years ago. But when he falls off a wall, he travels through a wormhole and ends up in 16th century ancient Japan. He meets a very young Oda Nobunaga, one of the most influential figures in Japanese history, who turns out to be identical in appearance as Saburo. The real Nobunaga, sick of the castle life and wanting to travel, orders Saburo to take his place. Without knowing how to get back to his time, Saburo tries to make sure history isn’t rewritten for the infamous Oda Nobunaga. [vyc]

Won the 57th Shogakukan Manga Award for shounen.

Makoto Kubota wandered through life, not taking things too seriously or looking too deep within himself. His job as the head of the Izumo Group's youth gang kept him pleasantly occupied with yakuza wars, mahjong and assassinations... Until the day he stumbled upon a strange drug called Wild Adapter that produces bizarre side-effects--including death. Forever changed, Kubota becomes entangled with a drifter named Minoru Tokito, and the two form an unlikely companionship that draws them deeper into the mystery of Wild Adapter...

From Shoujo Manga Maniac:
Chigusa Tsukikage holds the rights to the play "The Crimson Goddess," a lost masterpiece that many would love to see brought back to the stage.
Tsukikage, however, won't allow the cherished work to be diminished by an actress who isn't worthy of playing the title role. Fortunately, she has found two young actresses that just might be worthy: Maya Kitajima and Ayumi Himekawa. Though both actresses are exceptionally talented, only one can win the coveted role.

Nobuko Tanaka is a college student working part-time at a supermarket. Due to her shy and plain nature, her name is constantly mistaken for “Mobuko,” which has the kanji for “supporting role”. So when she develops feelings for her kind co-worker, Irie, will she be able to gather her courage and grow closer to him? Will this “supporting role” actress finally get a chance in the romantic spotlight?

The world is filled with cruel scum, ranging from petty thieves to sociopath maniacs. When a vile low-life inflicts pain and suffering on innocent victims, sometimes their anger becomes overwhelming. Whether their damage stems from romance, finance, reputation or even a death, these victims feel trapped in their own skins and lives.

Those victims who can't stand it anymore call for the mysterious woman, owner of Uramiya, the "Revenge Shop".

The Uramiya specializes in executing revenge schemes. The vengeance their customers request on their bitterly resented enemies could range from financially destroying them, to smearing their social reputation, to even taking their lives. As long as you pay a fair price, the Uramiya will guarantee you get the revenge you deserve.

More than ten years have passed since dungeons suddenly appeared on Earth. In a world where people with excellent skills play an active role as adventurers, the skill that high school student Takeshi Miyamoto has discovered is... "breast correction"!?

Takeshi is confused by the unique skill he has never seen or heard of. But there seems to be a surprising number of girls who need it.

A classic kaijū manga by the author of BTOOOM!

Follow JSDF officers Yamato Yoshikazu and Sakimori Konoe as they face off against monsters of unknown origin that infest the troubled, disputed waters of the East Asian sea and have humans as a preferential prey!

The setting of Fate/Apocrypha is a parallel world to Fate/stay night where the Greater Grail was removed from Fuyuki after the Third Holy Grail War and disappeared for many years. Around the 2000s, around the same time as the Fifth Holy Grail War would have happened, the group that plundered the Grail, Yggdmillennia, openly declares their secession from the Mage's Association and that they are in possession of the Grail. The Association dispatches fifty magi to retrieve it, but all but one are instantly slaughtered by Lancer of Black. The one remaining manages to activate the reserve system of the Greater Grail, allowing for the summoning of fourteen Servants in total.

Leon was reincarnated in the world of an otome game that he was forced by his sister to conquer just before his death. He tried to live a peaceful life as a mob character, but he encountered a scene where a female student ignored the flow of the story and tried to become the main character. Leon ended up seizing Marie, a girl who had a similar atmosphere to his sister from his previous life, and succeeded in thwarting the scheme. It should have have been the right choice... but why was he feeling uneasy about it?

'HP' is commonly used in games to represent the life remaining in certain things, but have you ever wondered what it would be like to see the 'HP' of other things? Huang, able to see the 'HP' of everything in the earth, in his eyes, he sees that the 'HP' of the earth is about to reach zero. Facing this world which is on the verge of death, Huang, with the girl accompanying him, Miu, will they destroy or save the world?

Valt Aoi is a cheerful boy in the 5th Grade. Crazy about Beyblade, he works hard to better himself at Beyblade with the partner Bey, Valtryek.

Valt's close friend Shu Kurenai, who is regarded as a Beyblade genius, is a participant in the National Tournament and is called one of the "Four Kings" due to his high influence within the tournament. Valt, who is inspired by Shu, sets his aim towards the National Tournament!

I was reincarnated as a villainess from an otome game I was playing.
At this rate,I'll be exiled for being in the heroine’s way of conquering love.
However, in this world... there are no entertainment materials!
No doujinshis, no otome games, no smartphone! I'm really bored! Of course, I should be avoiding the destructive bad end… but before that I’m going to die from boredom!
"If there's no entertainment, just create it!"
Using the knowledge from my past life to create toys and romance novels, I'll make this boring world fun!
After becoming the queen’s favorite entrepreneur, I thought this scenario change will bring me to my wonderful future…...but now the novel I wrote has brought me to the destruction flag--!?

Ryosuke, a junior high school student, lives alone with his sister-in-law, Nodoka, while his older brother is assigned elsewhere by work. Nodoka tries to take care of him in various ways, but she screws up so often that Ryosuke ends up having to follow her around. In addition, her screw-ups are so naughty that they are too stimulating for adolescent boys...?

The purported advertisement from the Jump Square issue says that everything in The Prince of Tennis up to now has been a "prologue" and that "a new legend for Ryoma and the others will begin."
50 middle school players have been invited to participate in the All Japan U-17 Selection Camp. Ryoma Echizen returns from the U.S to join his teammates and rivals.

Paw pads wrapped in white fur. Fluffiness around the neck. A bushy tail. A rounded figure that was the very definition of fur ball! ――A certain Japanese girl had been reincarnated into such a fox cub; Milfiria.
Milfiria was told to watch the house by her mother, as the mother left for the capital. However, unable to bear with the loneliness and deciding to chase her mother to the capital, Milfiria became lost in a fort protected by strong knights.

Story of a buxom and no-nonsense crime-fighting mentalist.

Sakura Minori is just a very average girl.
Yet despite being the only commoner in her school, could it be that she's actually become popular among the young ladies she so admired...!?
A girls-only lovey-dovey comedy♪

After regaining consciousness, your average high-schooler Asagaya Shin has become an AI for a space battleship. As if that wasn’t enough, the ship has been surrounded by enemies, and he himself has a damaged engine, putting him in a dire situation.

The warship commander had already died in combat, and taking the place of the temporary commander is a young girl of the imperial family, who had joined the ship out of courtesy. Shin had tried convincing himself that this was a dream, but being persuaded by the girl, he stands as a battleship.

After somehow crushing the enemy at point-blank range, the fleet’s fight is over, and the battle for the fate of the empire has ended in a crushing defeat. Shin gathers up the survivors and plans to escape the battleground, but there’s a large enemy fleet on the route to the empire. He makes a jump deep into the enemy territory on a slim chance, but —

Set 10,000 years in the future, a young boy has been turned into an incredibly powerful cheat AI and leads a small fleet to become peerless. There’s romantic comedy, imperial intrigue, ancient weapons, philosophy, and more!

I possessed the role of Civilian 1 in the 'tragic novel' I wrote with my friends as a joke. However, I was soon discovered by the female lead's father, known for endlessly doting on his daughter. The problem is... "Then, what'll happen to my daughter in this 'tragic novel'?" "...What? Ten male leads?" The father of the heroine, Duke Henstone, declared revolution in order to change his daughter's miserable fate. The thing is, if I were to run away now, I'd leave many lives in danger. "I will protect the female lead!" And that's how I began a new chapter of my life, living with the daughter-obsessed duke. But, why is the female lead acting so strange? Why do you keep hooking me up with your dad?

*Note: An éminence grise or grey eminence is a powerful decision-maker or adviser who operates "behind the scenes", or in a non-public or unofficial capacity. This phrase originally referred to François Leclerc du Tremblay, the right-hand man of Cardinal Richelieu.