Murakami Sho has been putting years of blood and sweat into G&G Gold, a large banking company. He came up from nothing, worked insanely hard and now lives very comfortably, even having Rei, the hottest girl in the company, as his girlfriend.
But all that starts to slip away when Kirishima Joe comes into the company. With his handsome looks, impeccable style, calm demeanor and well endowed manhood, Joe has been upstaging Sho in every aspect of his life. And when Joe takes Rei away from him, Sho snaps and takes any measure to destroy Joe’s life. But Joe has a secret that makes him hard to break.

Plants have taken over the planet.
In 2017, the vegetation in Tokyo rose up and toppled human society in moments.
The few survivors are forced to live in the relative safety of a subway network, but supplies are running low.
Join an average high school student named Akira as he challenges the plants in a struggle for survival!

"Three years ago, he had the same posture.
Three years ago, he had stood behind Miyuki.
Yes.... Compared to three years ago, it had changed."

Set three years prior to the present time, Tsuioku Hen tells the events that would change Miyuki's world drastically, as well as the events that led Tatsuya to become what he is now.

(Adaption of Light Novel v08)

A year has passed since the Demans took over the island. The humans await a savior. A tale of a crimson knight that appears before them.

After a mission gone awry, the doubtful main character, Rood, is sent to a famous magic school, Helios. Here, he must protect an important person's son who has a very bad time at the school.

Iori is a high-school girl who doesn't know what she wants to do with her future, and tends to run away from things. One day, she is attacked by strange dead-eyed people on her way to school, only to be saved by an equally mysterious long-haired man. Later that day, her friend at school, Jion, seems to fall under the same murderous influence. To her surprise, she finds herself capable of defending herself from his violent attack. Afterward, the long-haired man she met in the morning, Zerozaki Soushiki, arrives once more, this time to invite her to become his little sister. What has Iori become involved with, and will she be able to survive this change to her life?

From: Easy Going Scans

Some corrupted high ranked officers within the palace are accusing the crown prince Sado of high treason and ask for his death! What will the Emperor do to save his son?

A fusion heroic historical about a crown prince in a wooden chest about to meet death, but actually turns out he has bigger influence and authority beyond imagination.

Adapted to K-Drama.

From: Easy Going Scans

DoAh Lee, a seemingly "normal" high-school boy, gets caught in a strange and embarrassing situation. Before he knows it, he is blackmailed into becoming the manager for a team of quirky, unruly, not to mention slightly lazy, heroes. Will he ever go back to his "normal" high-school days?

For four decades, Golgo 13 has been the world's greatest assassin for hire. Sometimes to settle a private score, and sometimes to change history!

His real name and nationality are unknown but his legend is everywhere. Golgo 13 never fails a job and never sees his clients again. Unless they try to betray him.

Note: Won the 21st Shogakukan Manga Award for general manga in 1976.
Is the bestselling seinen manga as of 2016 with 200 million volumes sold.

When childhood innocence gives way to a blinding thirst for revenge, is it worth the price of one's humanity?

Tetsunosuke and Tatsunosuke are the sons of a diplomat who sought to bring peace and prosperity to Japan during the early Meiji Restoration. But when their parents are murdered before their very eyes, Tetsu seeks to join the Shinsengumi, the unofficial police who are capable of the same brutality as his parents' murderers. Wading through a sea of espionage, deception and bloodshed, the young boy must choose: should he take a step on the path to becoming a demon...or give up his rage and transform into the ultimate Peacemaker?

From Easy Going Scans:
The story of a boy and girl whose lives were one day entwined by red string. Literally.

From DragonVoice: This is naturally a shounen manga and deals with the orphaned boy Hyouta who's in a group of traveling entertainers and one day he encounters a fine noble woman named Tokiwa who requests the group to perform at her home. But her intentions are not what they seem to be... Read the rest for yourself ^^ The first chapter will probably remind you guys of the story of "The Prince and the Pauper".

From Easy Going Scans:

In the near future, Mother Nature has decided to fight back against all human encroachment.

The world has entered your standard apocalyptic scenario that you can find in many forms of fiction, but it's right in the middle of the apocalypse actually happening, rather than in the aftermath. Vines and foliage entangle cities, as large wooden mech-like creatures called Arethusa (named after one of the mythical Greek Hesperides that tended the gardens in a remote corner of the world) rampage through cities.

Souma Shin, a punk kid out of Japan, went to visit his brother Ken, but all hell breaks loose as Shin finds a group of small kids being used for military purposes. He tries to save them in the confusion created by an Arethusa invading the compound...

From: Easy Going Scans

Everyone in his Yakuza gang looked up to him.

He was the boss's favorite pupil, but then in a single night, after he had won so many territorial fights for his gang, he lost everything! Why?

Takahara Jin is a former delinquent in a biker gang. Every day from the day of his entrance ceremony in high school various problems occur that can make him be expelled but from these problems, the power of his arm is noticed and in exchange for not being expelled he must join the baseball club. This series follows Jin as he looks away from his past and gives baseball his all.

Minato is a total loser. He's failed to make it into college twice, he's unpopular with women, and he's unemployed. He seems like the classic-useless-shounen-harem-male-lead...
In truth, however he's actually an Ashikabi--one of a mysterious set of "masters" in an awesome battle royale between hordes of cute girls called "Sekirei."
Since this is an ecchi manga, with their attacks they often happen to... you guessed it--ripping each others' clothes off! Looks like his luck's taken a turn for the better.

From asdf scans:
In near future, mankind has been defeated by the viral parasites named "Gastrea." They have been exiled into a small territory and live in despair, side by side with terror. In this world trapped in darkness Rentaro, a boy living near Tokyo and a member of the "Civil Security"—an organization specializing in fighting against the Gastrea—is used to accomplishing dangerous tasks. His partner is Enju, a precocious young girl. They fight using their peculiar powers until one day, they receive a special assignment from the government. This top secret mission is to prevent the destruction of Tokyo. Set in a near future, this thrilling heroic-action story starts now.

Many different anthropomorphic predator and prey species are intermingling in a fantastical African savanna society! It is a strictly structured society with many rules, such as those governing when and where a predator is allowed to hunt their prey.

One lion, Leon, does not quite fit into the role nature has chosen for him. He doesn't grow his mane out, and, despite his physical strength, he shows no real interest in establishing territory and acquiring a harem of lionesses. But the most abnormal quirk of all is that Leon is a vegetarian lion!

His tiger companion (who has a bit of a crush on him), is firmly of the opinion that herbivores exist to be eaten, but she manages to mostly put up with his vegetarianism. One day, the two of them rescue a frightened gazelle, freshly arrived from the capital. The tiger is less than thrilled to have a pretty female food-animal hanging around with them, but the jackals who are tracking the gazelle seem to have some kind of business with Leon as well...

The resonating Echo of the sword changes the boy's fear into rage.

From Batoto:

Masumasu Academy, an Academic City floating in the Pacific, is home to children with mysterious powers known as "Fiction". "Fiction" grants them enhanced physical prowess, as well as one additional ability. What will happen when a time stopper, Kazuma, meets a cute girl with the ability to move at lightspeed, who knows and is searching for him?