In the year 21XX, robots are a typical part of everyday life. Even in this world however, Mono-1 is quite the oddity as the newest model of Robot. Although her intelligence is at the level of a child, her creator designed her to grow through observation, and leaves her in the care of his son, Morohito, to help her find new experiences to learn from

High school students Kamijou Haruta and Homura Chika are members of a wind instrument club that is on the verge of being shut down. The two are childhood friends and they spend their days practicing hard, while also trying to recruit new members. When a certain incident happens within their school, they work together to solve it.

(Source: ANN)

From Dan of Population GO:

In a world where girls who have turned into an "Eternal Labyrinth" endangers the world, only one person doesn't want to kill them. Arisu Shinnosuke hates society which revels in those who kill the labyrinth diseased girls. Only he strives to find the cure and reverse the disease all in order to save his little sister, who turned.

From MangaHelpers:
As Japan's population grows older and smaller, and as murder rates skyrocket, the Japanese government began to implement stricter laws against the worst criminals. With even the death penalty lacking the deterring force to stop the most violent criminals, Japan brought back to life a law from the 19th century: the Revenge law. This law allows victims and their related parties to employ a governmental special forces agency to capture and attack the murderer—by reenacting the exact same methods that the murderer used on the victim.
Yamagishi Yuji is the 7th member of the Special Forces "Sukedachi-nin." Each of the members of this special forces has been chosen to enforce the Revenge law because they too have been a victim of past crimes.

A series of manga adaptations of Ian Fleming's James Bond novels.Four novels were adapted in total: Live and Let Die, Thunderball, On Her Majesty's Secret Service and The Man with the Golden Gun.

Souzou Sagara, the commander of the Sekiho Army, is determined to overthrow the new government and change Japan. A young boy called Heihachi admires Sagara, and is determined to help him lead the country towards change.

When a small town is affected by the recession, its residents blame their misfortune on the god who resides at a temple in a nearby mountain. Another resident of the temple, a fox spirit called Gin is angered that the humans are blaming his master, but eventually learns to develop some compassion towards humans.

In a fantasy world, fighter Tatsumi sets out for the Capital to earn money for his starving village, and finds a world of unimaginable corruption, all spreading from the depraved Prime Minister who controls the child Emperor's ear. After nearly becoming a victim of this corruption himself, Tatsumi is recruited by Night Raid, a group of assassins dedicated to eliminating the corruption plaguing the Capitol by mercilessly killing those responsible.

The romantic relationship between a naive yankee girl and a boy with seemingly no common sense.

Lee Wee Jin has to cope with his tyrant sister on a master-slave basis everyday. Trying to fool himself he evades reality, thinking she's tsundere and that she really likes him. Suddenly, these delusions become all too real.

Compilation of short stories, each about two girls hunting for mermaids to win their true love.

Seto Yu is a 12-year-old boy, that is abused violently by his father. One day, he is transported into a fantasy world with video game mechanics after being killed by his abusive father and he discovers that he has the unique ability to steal other people's skills for his own use. He quickly uses his special power to take revenge on the townspeople who bully him and obtains a harem of beautiful girls who love him unconditionally even though he shows no romantic interest in any of them and has the physical build of a skinny teenager

Clemens is a student at a prestigious military school somewhere in Europe. What his fellow students don’t know is that he also assists his master in hunting vampires.

Certain people suffer from a mysterious disease which causes a wind-up key to appear somewhere on their body. The key has to be wound regularly, otherwise they will stop moving. Miku’s parents, who suffer from this disease, are captured by the authorities, while Miku escapes into the town to seek help from a mysterious boy called Kuro.

Backstory of the events taking place before Saint Seiya.

A mysterious illness is spreading rapidly through the halls of Fujimi High School. In a matter of hours, the campus is transformed from a place of learning into a hive of nightmares, as the infected students collapse and are reborn as flesh-hungry zombies! Only a handful of students escape the initial outbreak - among them Takashi Komuro and his childhood friend, Rei. He manages to protect Rei from the initial onslaught, but how long can Takashi and the other students hope to survive when the whole school - maybe the whole town - is out for their blood?!
Incomplete due to the author´s death

Jack O’Brien is a penniless detective who runs his own agency, together with his partner, Eileen. One day, they are called to investigate the truth behind a terrorist attack at a bridge in the city.

A war rages through the city, where battles are fought with music. Theo is disappointed by his brother Will's refusal to take part in the war, despite his talent for composing battle music, and decides to take matters into his own hands by using the music Will has composed.

Little girls have gone missing. Among them is….
"Father, my little sister was kidnapped!”, cried Wilhelm.
The priests gives him hope, “Let’s pray for the Lord to drive the demon away”.
But Wilhelm believes that praying won’t change anything.
He would do anything to save his little sister….
Even if he has to pay with his soul in exchange.

He confronts the demon that lives in the outskirts of town.
“AREN’T YOU…”, Wilhelm openly suspects the creature, “THE ONE RESPONSIBLE?!”
…… the demon smiles maliciously.

Subaru, the basketball prodigy; Kou, the guy who's still struggling to get into their school's basketball team. Identical twins, but no identical abilities. An unfortunate accident that left one crippled and the other guilt-stricken.
A bitter-sweet tale of sibling rivalry and how family love can indeed win out in the end.