Kenji is a manga about a Japanese teenager named Kenji, who practices the martial art Bajiquan, and his encounters with other martial artists, some of which are taken from real life (Adam Hsu and Liu Chia-Liang) This series primarily features Bajiquan, but also gets into Tanglangquan, Baguazhang, Chen Taijiquan, Piguaquan, Xingyiquan, Xinyiliuhequan, Shaolinquan, Hung Gar, Daito ryu Aikijujutsu, Shotokan Karate and numerous other styles.

Na Hae-Il, whose father works as a scholar, constantly travels around the world. Hence, it is difficult for Hae-Il to enjoy a regular school life. One day, a mysterious white hair girl appears, claiming that his father sent her! The 14 year-old German girl claims that she is Hae-Il's fiancee and continues to bring Hae-Il into weird situations. Changes in his body, enemies flying at him continuously...
Who are they, and what is hidden within Hae-Il's glove?

From: Easy Going Scans

They have a plan to replace the whole town with a fake ones from Layers. Will the special class be able to stop them?

From MangaHelpers:

Gaie Kensei is just starting his high-school life, at the same school as his childhood friend Nireki Hikari. His high school boasts a highly competitive kendo club, and Kensei is excited to join and begin learning from the older students. However, the fact that Kensei's father is a legendary kendo competitor works against him. Once the other club members learn that Kensei is not as good as his father, they refuse to let him join the team.

Wandering around in despair, Kensei comes across the secret hideout of Ashihara Naoto. She seems highly skilled in kendo, though she spends all her time reading and claims she hates the sport. Naoto reluctantly helps him train up to prove his worth to the kendo club, though she refuses to join the club herself. On the final day of club sign-ups, Kensei finally makes it into the Kendo club, along with his childhood friend Hikari, who becomes the first female member! Their kendo-centric high-school life is only beginning!

After the first "Last Exile" series, Claus, Lavie, Alvis, and our other heroes board the colony ship, Exile, to return home to the planet humanity abandoned hundreds of years ago. A few months have passed and the quiet, peaceful life they had hoped for is suddenly disrupted when a familiar enemy appears. How did the enemy they left behind a world ago follow them all the way home!?

There's a new student at Harukaze High School!
He's a complete ditz, only eats rice, says strange things and is an android built to conquer the world.
Would you believe he's one of the normal students?
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Harukaze High School's photography club is anything but normal. All the oddballs in the school seem to join. And the craziest one has just arrived...an android built to take over the world! Though he'd rather just have a bowl of rice.

Note: Won the 19th Seiun Award for Best Comic (1988).

Teenager Kurikura Kansuke lives in a small village with his family but tragedy strikes one day when his younger sister, Ayame, is brutally murdered. Six years later, Kansuke, in his search for his missing older brother, finds multiple women who all call themselves Kurikura Ayame. Kansuke learns that out of grief for Ayame, his brother created dolls, each with a part of her corpse and enhanced for combat. Kansuke vows to find his brother and stop the mindless violence.

Money may be power, but these two siblings still live in poverty.

From Minna-scan:

This is a story about a Kuu, who is thinking about her prince all the time, she has dreams of him all the time, of him telling her to come with him. One day, as she goes back to school, she meets with someone who looks like him. Before long, the story gets complicated with mechas and stuff--what will become of Kuu?

A manga about the four brothers of the Kuzumoto family, a group of people with supernatural powers. This year they are selected to be the "Supernatural Management Team", a group tasked with preventing any abuses of supernatural power that would cause disturbance to the ordinary people of the town or allow the discovery of people with supernatural powers. The story focuses upon 14-year-old Sora and how he and his three brothers work to protect the peace in their town.

It is the start of the 20th century and the Parisian commoners celebrating the Belle Époque are fascinated by the antics of the resident phantom thief Arsène Lupin. But the mask of Lupin actually belies a beautiful woman...? An epic adventure aboard a luxury liner and involving even Detective Holmes is about to unfold!

A young knight from a destitute noble family tries to live up to the code of chivalry.

The story centers around Keiichirou, a young man who lives alone in his house. He went through a lot of pain in his life, ever since an accident that happened three years ago.

One rainy day, he finds a little girl, drenched from the rain, inside his home. She is named Flower, and so begins the life for these two unlikely protagonists.

An abused kid and his mom decide to skip town one night in order to escape the loan sharks hounding them over the father's debt. After his mother dies, the boy decides to exact revenge on the people who were responsible.

Takeru, who just graduated from middle school, learns that his father has suddenly remarried. While being happy for him, Takeru leads, what he believes to be a boring life. His only hobby is taking pictures of things he finds 'nice' with his cell phone. Upon entering high school, he is taking pictures of some cherry blossoms, when he sees a strange foreign girl and accidentally snaps a picture of her. And thus begins Takeru's interesting new high-school life.

Yonezo Yonekura is a young student, who is just starting to mature and notice his old childhood friend Tomoyo. Unfortunately for him, Tomoyo only likes intelligent people, and let’s just say Yonezo isn’t the brightest crayon in the box. One day when walking home, a strange old man warns Yonezo not to touch a demonic book that he will come across on his way home from school, but when Yonezo sees the book, he is too curious and picks it up anyways...

Tired of being timid, school girl Marie wishes she was bolder and more social. To her surprise, two angels appear in front of her. They introduce themselves as Ryofu Housen and her second in command, Chinkyu Koudai. The angels are from Sangoku Heaven where thousands of angels train and engage in war so that they can become king and live lavishly.
Chinkyu is known throughout the Sangoku Heaven as one of the most brilliant tacticians and with the raw power of Ryofu, they make an amazing combo. The two must obtain crystals that appear when a good deed is done for humanity in Marie’s world. Marie gets dragged into their quest under the most ridiculous of premises.

Hanasaki Ayumi can't quite find her place in the world with every day being one of emptiness and loneliness. But on the day she receives a mysterious letter, everything changes. Finding herself in a frightening new world full of unexpected adventures and fanciful characters, she joins in the journey of two adventure-seeking young men. Hoping that she'll find a way home, Ayumi soon realizes that the more time she spends in this strange, new world, the more she gets tangled up within it and the greatest questions of all: Who is she? and Where does she belong?

Based on DS Dating Sim "Love Plus".

The peaceful lives of many are taken away as a freak meteor shower destroys the Kanto area of Japan. However, the lives of the victims aren't lost, as they start to awaken one by one into a strange pre-historic world. A girl named Kyoka awakens into this world, and is attacked by a monster, however she is saved by Shinma Shingo, another monster. She joins Shinma and his companion as they search to find a way back home.