Yoshihara, Rieko

Michihara, Katsumi

Nagato, Saichi

In the future, on a distant star lives a new society. Ruled by a computer system, named Jupiter, men are divided into classes based on their hair color. The Blondies, genetically altered by Jupiter, are the highest class and occupy the capital city of Tanagura. Those with black hair, Mongrels, are forced to live in the slums, Ceres. Iason, the leader of the Blondies, encounters Riki, a mongrel, in the streets of Ceres one night and sets out to own him.

(Source: June)

Subtitles for the individual volumes are as follows:
1: Stranger (帰って来た男)
2: Destiny (命動)
3: Nightmare (刻印)
4: Suggestion (昏迷)
5: Darkness (長い夜)
6: Metamorphose (衝動の引き金)

Ai no Kusabi

間の楔

Sugimoto, Ami

The third series in the "Animal X" timeline.

Having burned enough bridges in Japan, Yuuji and Minato have moved their new family to a small dinosaur-crazy town in Canada. If there's any place in the world left for Dinosauroids, surely it must be here: a town revived by the discovery of dinosaur bones, with one of the largest paleontology research centers in the world, and a network of "Conservation Centers" set up to cater to the newly-discovered Dinosauroid community. The rest of the world, None-the-wiser for the incident at the Biodome (which was covered up completely) has pretty much forgotten all about Dinosauroids.

Animal X: Genshi Sairai

Animal X―原始再来

Hagio, Moto

In the year 2999, only eleven cities still survive on Earth. The climate has changed drastically, and a biochemical apocalypse has made women extinct. For centuries, the male population of Earth has survived by depending on only one woman, called the Holy Mother, whose ova are harvested to create genetically engineered children. By now, any concept of a world in which women exist as ordinary people is long gone. Society has re-structured itself around all-male families, and gay relationships have become the norm.

At the beginning of Marginal, the Holy Mother is assassinated by a terrorist known as Grinja. The government in power doesn't want to start a mass panic, so it pretends that the Holy Mother has only shed her vessel, and that she will be miraculously "reborn" in the near future. The public, which is superstitious and devout, believes this easily. Only government officials know that behind the scenes, there is a frantic effort to create a new being with an XXY chromosome -- a male capable of giving birth. (This is a BL misrepresentation of an actual phenomenon known as Klinefelter's Syndrome.)

The manga's story revolves around one such boy -- Kira, the product of a genetic experiment, who becomes involved in a three-way relationship with Grinja, the aforementioned terrorist, and Ashijin, a young man who calls himself Kira's owner. A complex plot and flawless world-building make the story irresistible, and Kira's search for freedom is as symbolic as it is gripping.

(Source: The Pink Panzer)

Marginal

マージナル

The first series in the "Animal X" timeline.

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.

(Source: Doki-Doki)

Animal X: Aragami no Ichizoku

Animal X―荒神の一族

Hoshino, Kana

Hiroki and Kanata have been together since they were children. One day Hiroki is caught up in an accident while trying to save a little girl. The next thing he knows, he is looking down on his own body. Seperated from his body, Kanata, and everything else, Hiroki tries to figure out just what is going on.

Why is he outside his body which is living on as if nothing has changed, how can he convince Kanata that he is there, and who is the strange girl, Fhalei, who keeps appearing for him?

(Source: AniDB)

This manga is a 7th book in Ryokunohara series. 

Contains two short stories: Kage no Oukoku de; Chiheisen MoA

Hiroki - Harusaki Meiro

弘樹一春咲迷路

blto

Ace soldier Jeong Jino is assigned a top-secret mission to save the world—only to find out it involves becoming a magical middle-aged man. Things go from bad to worse when the transformation makes his fellow soldiers suddenly claim he smells amazing and start chasing after him. Just as Jino is about to lose his mind, a—ahem—"helping hand" arrives in the form of Eliah, his longtime rival and the army's other ace. Saving the world was never supposed to be this embarrassing...or this complicated.

(Source: Lezhin Entertainment)

Mr. Magical Girl

마법중년 아저씨

A 11th manga of Ryokunohara series. Hiroki, Kanata amd friends are back. In this manga, they are going to film a movie for the school. Soon each of them started to experience strange paranormal activities. Hiroki, Kanata and Fueko found themselves in another dimension where their film comes alive. Ijima is approached by the 'too nice to be truth' to be Kanata. Takahashi and Kiriko and later, the whole group facing off with the problem that their characters in the film run loose into the real world.

Lunatic Cinema

ルナティック・シネマ

The 12th manga of Ryokunohara Series. The manga started of with Kanata heard a girl crying for help during the night. He noticed the strange weather, the same type of weather before his parent died. He found the girl that is crying for help, and she knows him? He doesn't recognize her and have no clue why she knows who he is. Soon before Kanata helps her, she died, disappeared in Kanata's arm....or it seemed so. The next morning, that girl appear to be a new student in his school. She tries to hook up with Kanata yet isolate herself from everybody else. Why and how she is still alive? And what exactly she is up to approaching Kanata like this? What is the explanation of her behavior?

Human.Noah no Koe

ヒューマン・ノーアの声

Kodaka, Kazuma

Three's a crowd. Ranmaru and Kei have a strong and passionate relationship built on years of trust, sacrifice and love. When the mysterious son of a Yakuza boss starts to have designs on Ranmaru's affection, tempers flare, and hidden emotions rise to the surface. Will Ranmaru and Kei's love for each other be able to survive this difficult test, or will the emotional conflict finally come to a head?

(Source: Be Beautiful)

Kizuna

Kizuna: Bonds of Love

KIZUNA

Shimotsuki, Kairi

Cry fell for Sig the moment he saw him at school, and though they became good friends, the relationship never progressed to what Cry wanted. But when Cry's overprotective brother Hard becomes jealous of him branching-out and having friends, Sig begins to see things in a new light. The second half of the manga focuses on Hard. As Cry drifts away towards independence, what will Hard do, since his sole purpose in life was to protect his brother...?

Also contains a short extra to Inferior Doll. (Source: Storm in Heaven)

Heaven's Love

ヘブンズ・ラブ

Yamagishi, Hokuto

Long ago in a distant land, when the heavens ruled the earth, the two of them met by a trick of destiny...

Called the "Wise man of the woods" and given much respect by the villagers, messenger of heaven Olgrius is searching for the origin of the incessant outbreak of storms. Then a villager, speaking riddles of an attacking beast, appears.

The being that Olgrius sees when he returns to the scene of the crime is a savage beast fallen from heaven. But the beast differs from the rumors—he touches Olgrius gently, and protects him from danger...!? 

(Source: Nakama)

Wild Wind

Ozaki, Minami

The story picks up after Zetsuai 1989, Koji and Izumi as a couple.  Izumi decides to leave for Italy for soccer, Koji races to meet him at the airport getting into an accident.  Now, Koji, a famous rock star,  cannot sing after his accident.  Will Koji and Izumi ever come to terms?

12 Manga Like Invoke