Highest Rated Manga

A "what if" alternative version of the original story, on which the cast gets acquainted in a different manner.
The basic premise is that Kodaka, a rude looking and easily misunderstood transfer student catches a glimpse from a conversation between Sena (the most popular girl on school) and "her friend" Renka (a character from a visual novel); after a short discussion followed, Sena decides to give it a try and make some friends with Kodaka's help.
This is a tweak from the original premise, on which Kodaka catches Yozora speaking to her "air friend", and is Yozora the one who decides to start practicing how to make friends with Kodaka's help.
(Source: MangaHelpers)

A normal office worker, Toru Minasuki, was swallowed up by a dimensional fissure and reincarnated into a different world. Upon reincarnation, Toru was given a [skill board] by God. Make the most of it to acquire all the necessary skills! Even though he is an "inferior person," he'll make his way to the top!

(Souce: MU)

On August 10 of 2019, humanity received a signal, which was verified for its integrity by hundreds of scientists, from an alien life form containing one message: let us meet on Mars on July 7, 2035. Thus began the creation of a space agency representing Earth as a whole named ST&RS. From there, things progressed quickly with man re-landing on the moon in 2022 and constructing many space stations orbiting Earth and the moon. The Space Academy was created to train the upcoming generation of ST&RS.

The same August 10th that Earth received the message, Shirafune Maho spoke his first words and it was “Mars.” Since then, Maho has been an astronomy freak who has nothing but the universe on his mind. He decides he is going to apply for the Space Academy along with his childhood friend, Hoshihara Meguru, and recent transfer and super smart classmate, Amachi Wataru. The trio begins their almost impossible journey of being accepted into the school where only 1% of the applicants are allowed into the academy.

(Source: MU)

Thanks to her parents divorce conflict, Nagi has to spend her summer vacation with her uncle who is a shinto priest. There she gets to meet another person that's staying at the shrine.

Spike, Jet, Faye and Ed—cowboys on the new frontier. Together this band of interplanetary bounty hunters takes on the jobs that anyone in their right mind would turn down.
(Source: Tokyopop)

Chihiro, a middle-aged father who still thinks he's good-looking, lives together with his 12 year old daughter, Shima. Is Shima irritated by her dad because she's going through puberty? Or is she just acting like a spoiled kid? Asami Serkiya presents a realistic depiction of a girl in middle school.
(Source: Futabasha)

Fudo Jun is a school teacher having dreams of uncontrollable urges of violence. She takes the school tennis team on a trip where they are attacked by demons. To try and save the girls and herself she ends up unleashing Devilman Lady.

The Hanzo Academy is not just a regular school. It holds a top secret class for ninja training reserved just for the elite. Only two girls made the cut this year, Ikaruga, a quiet but gifted brunette, and Katsuragi, a passionate and skilled blonde. Their personalities could not be more polar opposite and sparks fly even on the first day of class. Ikaruga, being a little bit ahead of the curve, outscores Katsuragi on every assignment. With tensions running high, how will these two ninja students work together when the time comes?
(Source: Deus Ex Scans)

Returning home late in the evening, Kanogawa Masaki is attacked by a murderer! Just in time to save her, a cute doll-like girl with deadly scissors kills the attacker, with the explanation that she is just doing her job. Unfortunately, part of this strange girl's job is also killing any witnesses. For reasons unknown, she allows Masaki to run away. Now Masaki can't stop thinking about her, and about finding a way to see her again...

Being a virgin employee, Yamashita had dreamed to sleep at least once with his most favorite gay porn star, Hikaru. From there, he has an unbelieveable encounter when he left from work! During the middle of the intercourse, however, it turns out that the man isn't Hikaru, but someone called Asami Ryuuichi...! "...Who on earth are you?!"
(Source: MangaFox)

In a postapocalyptic world of heavy metal fantasy, the only thing able to save humans from orcs, lizard men, and other monsters is something even MORE evil. Sealed within a 14-year-old boy, the chaotic wizard Dark Schneider is unleashed to fight four mighty generals and their plot to resurrect the evil god Anslasax! (Source: Viz)

The fourth primogenitor is the strongest vampire who exists only in the world of legends. Yet when this masters the Twelve Kenjuu, the spread of the catastrophe of the vampires will appear in Japan.

In order to spy on and erase the fourth primogenitor, the government owned Lion organization has decided to send an attacking magician a "sword shaman" to complete the task. Yet, unknowingly, the one who was selected to spy was actually a trainee "sword shaman" girl Himeragi Yukina.

(Source: Autumn Scanlations)

The great demon Mao Dante, exploiting the weakness of a boy exposed to his demoniac influence in the dreams, is awakened from a thousand years sleep.
The will of this being, a survivor of an ancient and forgotten civilization , is to wipe out the whole human race.
Anyhow nothing is so simple: the motivations of the demon aren't so wicked as one could think and they will combine with the life of the boy which hangs between nightmare and craziness.
In the meanwhile the satanist will fight against the hierarchy of the church to obtain a justice which is, as it's easy to guess, that of the demon Mao.
This series didn't have an ending until it's remake in 2002. Nagai took many ideas from Mao Dante into Devilman. (mangaupdates.com)

Pochiyama-san works at a local pharmacy. She is a loner and seldom speaks; instead she writes what she wants to say on... well you'll see for yourself once you read this short and humorous one-shot.
(Source: Mangaupdates)
Four installments have been released to date, once every year since 2005. The fourth and most recent was published on 30 December 2008. The first three installments were published together as an internationally available iPod Touch / iPhone app (with a rather poorly-made official English translation) via the iTunes App Store on 14 August 2008.

A collection of short stories:
1. Bousou♥Otome by IKEYAMADA Go
High school girl Chihiro is, in fact, a shounen manga author! She bases her manga on her wild ideas with her first boyfriend, Izumi-kun, but she's keeping it a secret from him...?
(Also included in Get Love!! Vol. 6)
2. Gyutto Shite Chuu by CHIBA Kozue
(Also included in Gyutto Shite Chuu)
3. Kimi wo Choudai by KURUMATANI Haruko
4. Kyuukyoku Kareshi ni Yamitsuki Kanojou by SHIRAISHI Yuki
Chisako has a boyfriend that's the head of the public morals committee but she has a secret that he must not find out!
(Also included in Ojousama no Himitsu)
5. Seitokaishitsu de Himitsu no XX by MAMURA Mio
6. Megane Jikenbo by NAODA Tsuboko
7. Megane Danshi wo Hitorijime♥ by HATTORI Miki
When Sakurai came early to class one day, she starts talking to guy who wears glasses in her class who also came in early. Bored by his responses, she decides to steal his glasses revealing this four-eyes is actually quite a bishie!
8. Kimi no Heart ni Koi no Ya wo by OTANI Hanayo
(Source: Intercross)

Otome Arisugawa has always hated boys. Her life is made worse when her father suddenly takes her away to Otoko Mura, a village with a 98% male population! If that wasn't enough, she's supposed to pick one of the residents to be her fiancé!?
(Source: Nagareboshi Manga)

The one-shot opens with two slightly different members of a yakuza group talking together at a family restaurant. The yakuza group is in the middle of a dispute, and some members visit a young man named "Damiyan" who has a mysterious power.

(Source: ANN)

Shy Yanahara Taichi wants to be a voice actor, so he joins the closest thing he can find, which is the theatre club at his high school. The three girls of the club, big-breasted Shinobu, aloof Sae, and president Manaka are surprised to finally have a boy join up. They've decided to help him become an actor and are going to start by forcing him to overcome his shyness with girls.