From Aerandria Scans:

Mysterious alchemist Lorenzo Lusignano, descendant of the royal family of Cyprus, is searching for the ultimate secret of alchemy – the Philosopher’s stone "Elixir." Rumors of this blood-red gem creep everywhere, but nobody seems to have seen it, so Lorenzo’s travels through Europe’s Renaissance are never easy.

Each volume has a different title:
1. Guranashisu no Meikyuu (柘榴の迷宮; Granacis Labyrinth)
2. Bara yori mo Akaku Yuki yori mo Shiroku (薔薇よりも赤く雪よりも白く; Redder than Roses, Whiter than Snow)　
3. Gothic Anatomia　(ゴシックアナトミア)
4. Ofiukusu no Keifu (オフィウクスの系譜; Lineage of Ophiuchus)
5. Sen no Yoru no Ryojin　(千の夜の旅人; Traveler of a Thousand Nights)
6. Rakuen no Kizu　(楽園の疵; The Scars of Eden)
7. Chinmoku no Shima　(沈黙の島; Island of Silence)
8. Suijou no Meiro　(水上の迷路; Aquatic Maze)
9. Death Stalker (デス・ストーカー)
10. Seichi 1187　(聖地1187; Holy Land 1187)
11. Kurowashi no Keifu　(黒鷲の系譜; Lineage of Kurowashi)
12. Kenja no Ishi: Elixer (賢者の石 －エリキサ－; Philosopher's Stone: Elixer)
13. Hatami Yo (二十三夜; 23 Nights)

Shirahama Kenichi is a book lover who has just entered high school, but he is often bullied by others. One day, he became good friends with the new transfer student, Fuurinji Miu, who was also looking for a friend. Kenichi was shocked at how powerful she is at first, but he is still somehow attracted to her...

What would you do if money could be exchanged for life? Sell ten years of life for a fortune, or give up everything to buy one more year. At the age of 17, a high school boy who has it all together meets a man with superpowers that are both godly and demonic. Through a deadly struggle for his life, he stumbles upon a world "on the other side"!

An adult body, but childish heart. Heartrending, but sweet. A somewhat bitter high school love story.

Welcome to the world of street fighting!!
Sakura Momochi, a mysterious black-haired girl appears before teenage fighter, Jin Matsuriya.

"You'll get one soon… an invitation to real deadly fights with no rules... a tournament where blood is washed away with blood."

Her mysterious words and an invitation arriving at the same time to the UBS (Ultra Battle Satellite) fighting tournament draws Jin into the world of street fighting!!

A no rule head-on battle begins!!

From Senpai Scans:
Takamachi Moka has been away from school due to a lung illness for so long, she has to repeat a grade. Stuck in the first year while her friends move on in the second year she eats lunch alone until a boy with a cat falls down next to her?

Jun is a girl whose words have been sealed away. She was once a very happy girl, but because of a certain thing she said when she was very young, her family was torn apart. One day, the egg fairy appeared in front of her and sealed away her ability to talk in order to stop her from hurting anybody else. Since this traumatic experience, Jun lives in the shadows away from the limelight. But, one day, she is nominated to become an executive member of the "community outreach council." On top of that, Jun is also appointed to play the main lead in their musical...(Source: Official website)

From MangaHelpers:

High-school girl Yui found a mysterious boy lying unconscious on the beach. This mysterious boy can't remember where he is from, only that his name is "Sid." After a confrontation with the locals, they discover that Sid is one of the human weaponry developed by the Japanese government, known as "Uncanny Brains" or UB. As the powers of the UB unfold before them, will Sid's arrival on this island spell doom for Yui and her friends?

From manhwa101
A young very talented hairstylist Hyunkang Kim, with an obsession for scissors, is one day recruited by an old man on the street. He later discovers that the gentleman in question was once the director of best hair salon in Seoul!

Accepting the offer thus begins his story. Challenges, friendship, overcoming past traumas, and delirious situations now fill his life! And there might even be time for some romance... ?

Jose lived a normal life until he met this girl, Maria, who was mysteriously targeted by unknown individuals. He got himself involved and was eventually killed by her pursuers. This event led to the awakening of Jose’s hidden abilities that brought him back to life; which unknown to him, is an unimaginable power that runs in his blood. He had been carrying in him the strength of one of the strongest Archangels who was foretold in the Prophecy of the Karmanics to be the savior of mankind. (Published by www.MangaMagazine.net) This is a Filipino manga.

For years, fans of the animated series (Avatar: The Last Airbender and The Legend of Korra) have been burned with one question - Wwhat happened to Zuko's mother? Finding a clue at last, Fire Lord Zuko enlists the aid of Team Avatar - and the most unlikely ally of all - to help uncover the biggest secret of his life.
An Earth Kingdom Scholar's points of view about "family" and governing with dignity motivates Zuko to set things right within his own family. He makes a deal with Azula, releasing her from the mental institution in exchange for her help on his quest to discover the truth about their mother, Ursa. Additionally, with the help of Aang, Sokka, and Katara, the five set out on a journey towards Ursa's hometown. Tensions between Azula and the rest stir trouble and an encounter with a wolf spirit delays them even more, though as they continue, they find their own dynamic to make it all work.

When Tokyo ESP meets Ga-rei...

From Kodansha Comics:
In the gritty, futuristic city of Neo-Saitama, the streets run slick with acid rain and blood. Here, an army of cybernetics-clad ninjas runs amok under the menacing rule of the Soukai Syndicate. As incessant strife wrought by a ninja turf war takes the lives of all citizens who end up in the crossfire, one can only hope to end the day without getting a suriken to the skull. But in these dark, tragic times, a spirit of vengeance rises to kill all wicked Ninja who terrorize Neo-Saitama. This crimson avenger is Ninja Slayer, and he will not rest until all Ninja have been slaughtered at his hands.

Kaju is a normal boy. But his life changes when he is reanimated by a necromancer who wants to conquer Japan. Whatever will happen next...

The love full of mistakes between my boss and me is about to begin?!

Just because of a single mistake, my life is about to go through an unbelievable change.

Drunken, Nagato Hiroki committed a mistake of one-night stand with a man who he barely knows! But, it was found out that his newly assigned boss, Kurosawa, is that man from the past he had one-night stand with!

Saving the life of the girl he loves, Sahu incidentally turns into a zombie. And now he's trying to survive in a stone jungle, believing that one day he will sing for the world.

After being reformed by the GTO, Eikichi Onizuka, the Twins of Terror, Riko and Miko Sakaki, leave their past behind and become members of the Disciplinary Committee at their school, Chigasaki Kahoku Private Academy, helping fellow students in need through an SOS messaging system. When an illegal prostitution auction ring is uncovered at their school, the twins set out to restore peace to their school and punish those responsible.

The story centers on Asuna, a girl who spends her solitary days listening to the mysterious music emanating from the crystal radio she received from her father as a memento. However, she embarks on a journey of adventure to meet a boy again, and thus comes to know the cruelty and beauty of the world, as well as loss.

Original Author's Comment:
"The death of a 19 year old high school girl. This is the story of the guy that hung out with her."

In the last year of high school, Ju Younghwa (19) is met with the suicide of his friend, Juwon. Right after her funeral, he gets into an accident that results in his memories being lost. Now, he slowly tries to learn about the past that lead to the death of Juwon.