From Noctis Op.92:
What exactly is the difference between a robot and a human?

In a dystopian future in which robots are becoming increasingly commonplace, a young boy named Hogu lives in near poverty with his grandmother and sister. Though he innately possesses a kind soul, he is ostracized by his classmates and frequently bullied. At the beginning of the story, we find Hogu, friendless and alone - until he meets a robot girl...and our story begins.

From Beautiful Soup:

"1999" is an angsty and widely varied series about a bunch of teenagers. One of them is the son of a drug lord and so as you can imagine, all sorts of shit goes down, surrounded by a backdrop of convoluted and fluctuating interpersonal relationships.

This is a plot heavy manga with some mildly-explicit sexual activity.

MAL:
This plot takes a new twist to Romeo and Juliet's forbidden love. It's July 7th, 1999 in Shanghai and there are two gangs fighting for control. Only in the ceasefire zone do people live in peace. In a chance meeting Xiaoxue, who is part of the Toulon's gang, and Dawu, from the Xianglongji's gang meet by chance and without knowing they are enemies. In the heat of the moment Dawu takes him to a place he has the keys to in hopes Xiaoxue will join him, but is turned down. With a simple kiss he leaves Dawu not knowing they will meet again, but in very different circumstances

After a tragic accident at a large facility 6000 meters below water killed its workers, the facility was abandoned for three years. After the Japanese company owning it is taken over by a Chinese company, the facility will be opened again. Kadokura Kengo and his colleague Danzaki are sent along with the team reopening the underwater facility. However, right away, an 'accident' grievously injures Danzaki. Kengo is left alone with colleagues he doesn't trust in an eerie underwater environment that may have more to it than meets the eye...

A graveyard in contemporary Israel has an unlikely visitor. The elderly gentleman from Japan, a former news correspondent, lays a bouquet of flowers at the tomb of one Adolf Kamil. For he remembers the tale of three Adolfs: Kamil, a Jew who grew up in Kobe, Japan, the son of a baker; Kaufmann, only child of a German consul stationed at that port city and his Japanese wife; and the Fuhrer with whom the Far Eastern nation made common cause.

Won the 10th Kodansha Manga Award for general manga in 1986 (shared with What's Michael?).

Princess Acacia of Libya is engaged to the the prince of Hittite. They are madly in love with each other. But Lamec, the young king of Egypt, while conquering Libya (and killing Acacia's parents) falls in love with Acacia. He brought her back to Egypt with an intention of marrying her. But Lamec is already engaged to the powerful princess of Egypt. It is because of her who gave up the throne for Lamec that he was able to become king. The Egyptian princess throws Lamec into prison because he wanted to break up their engagement. After giving up on changing Lamec's mind, she kills him.
The prince of Hittite came to try to save Acacia but failed. He died while protecting her. The evil Egyptian princess then throws Acacia into a dungeon and opens the water ways for her to drown.

All 4 reincarnated 3000 years later into modern Seoul.

From Condensation:
Toujou Souko attends a Catholic high school for girls and spends most of her days ditching class and trying to hook up with guys. She's in a hurry to fall in love and often gets into trouble. Ueda-sensei is Souko's homeroom teacher and all the girls idolize him on campus. He thinks Souko's a good kid and is looking out for her best interests... Yet he never meant to encourage her to try and seduce him...
What begins as a passionate affair becomes a true and undying love... Ai Girl is an angsty love story loaded with melodrama. It should be noted that this series has adult themes and high smut content.

Taken from Solaris-SVU:
Ikuru is a boy who doesn't have long to live. Growing up questioning the purpose of his life and the reason for his impending death, he's constantly confused and lonely. After learning that he doesn't have much time left, he requests that a special "girl" called a AGH-RMS (Artificial Genes Human Regenerated for Mental Support) be given to him. These people are genetically made so that they help heal and ease the mental burdens of the terminally ill. This manga is cute, sad, and ultimately a story about life, death, and humanity.

Senoo Kaoru falls in love with an attractive freshman he meets at the library, Shinohara Akira.

Shinohara Souya is unable to let go of the memory of his beloved.

And Akira is a lonely boy starving for love.

No matter how strongly they wish for it, these feelings wrenching their hearts can never be requited.

A secret past binds them together; and the shocking truth will be revealed in the end.

What fate awaits these beasts hungry for love, in this tragic story by Hakutou Noriko?

From Aerandria Scans:

I suddenly lost my parents. Without a single relative, I must return to my father's birthplace, a village, where I can finish school. But I still cannot recover from the sadness. I am lost in doubts and insecurity. And then, on a mountain road, among the lush greenery, who do I chance to meet..?

1) Yurusarenai Otoko

2) Aishiatteru Futari

3) Seigi no Mikata no Koi no Yukue (Love & Battle)
Seigo, who grew up in a village, moved to Tokyo to find a job and to fight crime (apparently he has some strange superpowers), since not much happens in his village. One day his childhood friend Touma visits him and challenges him to remind him of his mission. At least that's Touma's claim...

4) Kanoko's Story

Note: Chapters 1-3 are shounen ai stories while chapter 4 is shoujo.

Akira is set in the post-apocalypse Neo-Tokyo of 2030, a vast metropolis built on the ashes of a Tokyo annihilated by an apocalyptic blast of unknown power that triggered World War III. The lives of two streetwise teenage friends, Tetsuo and Kaneda, change forever when dormant paranormal abilities begin to waken in Tetsuo, who becomes a target for a shadowy government operation, a group who will stop at nothing to prevent another catastrophe like that which leveled Tokyo. And at the core of their motivation is a raw, all-consuming fear. A fear of someone or something, of unthinkably monstrous power known only as "Akira".

Note: Won the 1984 Kodansha Manga Award for best general manga, won the Harvey Award for Best American Edition of Foreign Material in 1993 and was nominated for the Harvey for Best Graphic Album of Previously Published Work in 2002.

Collection of short stories including:

• Akatsuki no Fumi
The year is 2435, and Takatsuki Minori has developed a machine that can transport historical figures from their original time to the present. His son, Akira, one day discovers that the machine has gone haywire for no reason and ends up accidentally summoning the 16th century samurai, Mori Ranmaru...

From DramaQueen:
Blinded in a freak accident, Kai’s vision is restored years later through a corneal transplant. His new eyes, however, can’t seem to focus on his family or girlfriend. They are instead drawn to Hizuki, his surgeon.

Is it because of the doctor’s alluring scent, which Kai finds strangely familiar? Or could it be because the transplanted corneas last belonged to Hizuki’s lover...?

From Del Rey: A strange virus is making its way around the globe, causing its victims to commit suicide. In less than a week, it's become a lethal pandemic. But for a unique few, it does just the opposite... They evolve and become "Power Users." Taisuke Kanou and his best friend Hirose both become power users, but Hirose sides with Katsumata, a strange man with no regard for human life. The story follows Kanou as he discovers the secret behind his powers, encounters reporters, other power users, and even the military, as he tries to get his friends back.

A collection of two one-shots.

- Ame ni Niteiru: A beautiful, cheerful yet sad shounen-ai story.

- And My Heart Becomes Warm: An interesting story about a boy with a possible curse in his family.

When a devastating meteor struck Earth, Earth's guardian angel Lyu was so tortured by guilt that she killed herself. Mo Ye, the demon who was in love with Lyu, is determined to find her again. Has he found Lyu's reincarnation in the human Xiao Tian Nu?

From AQUA Scans:

"In an accident at the meat factory, the heiress was heavily injured. Guiltily, I agreed to her request, but this very same request have let me enter into a wonderful life..."

27 year-old Ayukawa Yuuji has never been much of a man. He's more comfortable sewing than fighting, he faints at the sight of blood, and his fiancee is tougher than he is. He's also a terrible pushover. So when his boss at the medical lab volunteers him for some experimental drug therapy, how can he possibly refuse? All's mediocre for Yuuji: master of the pathetic.

Mediocre, that is, until a juvenile mass murder suspect jumps out from under Yuuji's bed, declaring him his "mate." Before Yuuji has time to argue, the stranger transforms into a 16 foot-tall dinosaur and beheads his roommate...

Yuuji suddenly finds himself the sole target of a lost race that turns into dinosaurs, an extremely scary woman with a Goddess-Complex, the yakuza, a mad scientist and one 17 year-old boy who really, really, really wants to sleep with him.

Series:
1. Aragami no Ichizoku (4 volumes)
2. Daichi no Okite (2 volumes)
3. Genshi Sairai (10 volumes)

27 year-old Ayukawa Yuuji has never been much of a man. He's more comfortable sewing than fighting, he faints at the sight of blood, and his fiancee is tougher than he is. He's also a terrible pushover. So when his boss at the medical lab volunteers him for some experimental drug therapy, how can he possibly refuse? All's mediocre for Yuuji: master of the pathetic.

Mediocre, that is, until a juvenile mass murder suspect jumps out from under Yuuji's bed, declaring him his "mate." Before Yuuji has time to argue, the stranger transforms into a 16 foot-tall dinosaur and beheads his roommate...

Yuuji suddenly finds himself the sole target of a lost race that turns into dinosaurs, an extremely scary woman with a Goddess-Complex, the yakuza, a mad scientist and one 17 year-old boy who really, really, really wants to sleep with him.

Series:
1. Aragami no Ichizoku (4 volumes)
2. Daichi no Okite (2 volumes)
3. Genshi Sairai (10 volumes)

27 year-old Ayukawa Yuuji has never been much of a man. He's more comfortable sewing than fighting, he faints at the sight of blood, and his fiancee is tougher than he is. He's also a terrible pushover. So when his boss at the medical lab volunteers him for some experimental drug therapy, how can he possibly refuse? All's mediocre for Yuuji: master of the pathetic.

Mediocre, that is, until a juvenile mass murder suspect jumps out from under Yuuji's bed, declaring him his "mate." Before Yuuji has time to argue, the stranger transforms into a 16 foot-tall dinosaur and beheads his roommate...

Yuuji suddenly finds himself the sole target of a lost race that turns into dinosaurs, an extremely scary woman with a Goddess-Complex, the yakuza, a mad scientist and one 17 year-old boy who really, really, really wants to sleep with him.

Series:
1. Aragami no Ichizoku (4 volumes)
2. Daichi no Okite (2 volumes)
3. Genshi Sairai (10 volumes)