Comedy (1721)

Welcome to the world of Animal Country. In this world, there exists thousands of animals except for 1; man. That is, until a strange baby was found by the young raccoon Monoko. Now, she has made it her duty to be the child's mother in this world where the strong eat and the weak are eaten!
Included one-shot:
Volume 6: Konjiki no Gash Bell!! Gaiden: Tomo

Another manga loosely based on the MegaMan Battle Network game series.

Asuka is a cute and clueless high school girl who habitually does things, in all innocence, that seem sexually suggestive to the men around her.

(Source: MangaHelpers)

1-2. Itoshii Akuma
3. Kawaii Akuma: Gojitsu
4. Hisashi-kun Nikki
5. Aru Ippan Seito Shougen
6. Aru Hi Totsuzen
8. Soshite Boku wa Koi wo Kataru

The island of Growerth in northern Germany is home to Viscount Gerhardt von Waldstein, a vampire who rules the island as the Master of the Night. His accepting and merciful character has naturally attracted many nonhumans to the island in search of a place to call home. All sorts of colorful characters, from fellow vampires to witches and werewolves inhabit Waldstein Castle. Chief among its residents, however, are the viscount's family—his twin children Relic and Ferret.

Only a slight distance from the castle is the city of Rukram, whose mayor is a trash-talking Dhampyr with a bone to pick against the viscount. There also seems to be a young woman with a taste for vampires' flesh, and a shapeshifter with a complex about his true form.

And then there's the mysterious Organization—a group of vampires plotting... something. No one quite knows what they're up to, not even the members themselves.

A vampire series by Ryohgo Narita, Vamp is an early installment in Naritaverse, along with Baccano! and Durarara!!.

(Source: TV Tropes)
This series is on hiatus.

In a forgotten town known as the old capital of Tokyo, strange and mysterious crimes are progressively occuring. These supernatural occurances are beyond comprehension and bring fear and terror to the people. Only one person is not intimidated by the evil underlying these occurances and is willing to challenge them: Hyuga Mayuki, a young boy detective who holds a special insight power that allows him to uncover the real truth behind these occurances.

Haruka (14) and Sakura (12) are sisters. Yoshiko (14) and Mai (12) are sisters as well. So what happens when best friends Haruka and Yoshiko have an attraction to each others sisters of the Yuri kind?

(Source: MU)

Taito has been really sleepy lately, and keeps dreaming of a particular vampire who says she has given him her "poison". Sometimes he even thinks he hallucinates her voice when he's awake. But after surviving an accident that should have killed him, Taito's world changes drastically and he realizes that his dreams are more real than he thought.

Hirahira-kun is a boy that likes helping the most weak, and for that he uses his creativity to think up plans to defeat his corrupted upperclassmen and so to maintain the entirety of his colleagues of class.
Included one-shots:
Volume 1: Isourou wa Tsurai yo
Volume 2: Kimagure Punch

In the morning of his first day of work, novice teacher Tada Atsushi got into trouble with the principal... and he got fired immediately! On the day that he was finally appointed to another position, he encounters a little boy with round eyes on a snowy mountain road. The little boy shows him the way to his new school, but no matter how he looks at it, the school seems weird?! What exactly is waiting for Atsushi here?!

(Source: Aerandria Scans)

Eun-soo Cha has hated her mother ever since she was abandoned by her. Raised by her grandma, she became a wild child that likes to fight.

She has even disguised herself so well as a guy that people won't believe her even if she says she's a girl. She can fight well, and is even referred to as hot by girls. One day, however, her grandma's already bad health worsens, and she promises not to fight anymore.

When Eun-soo's grandma dies soon after, she decides to leave Dae-Jeon (where she lives) and goes to Seoul to live with her mother, despite still hating her, because she has nowhere else to go.

There, she runs into one of the best fighters, at her new school, and immediately gets on his bad side. What will happen? Will she break her promise to her grandma? Will love bloom?

When her parents need to move to another city for work, Aoi Nishimori decides to stay behind and starts living in an apartment on her own. Unexpectedly, she discovers that her next-door neighbor is Shuusei Kugayama, the "prince" in her high school who turns down anyone who confesses to him—including her best friend, Moe Shibuya. Aoi angrily confronts Shuusei for rejecting Moe; things quickly get heated, with Shuusei calling Aoi an eyesore, leaving her disappointed in the so-called "prince."

To make things worse, Aoi's clumsiness renders Shuusei’s apartment unlivable and the two have to live together in Aoi's apartment as a temporary solution. However, Aoi gets to know Shuusei better while living under the same roof and begins to realize that he is not the cold-hearted, despicable person she initially thought.

[Written by Animeranku Rewrite]

Makoto meets a sweet, shy girl named Haruna helping out at the school's athletics festival. He confesses his feelings for her the next time he sees her, and she bluntly rejects him, only to call him later and ask him out herself! The source of all these mixed signals is Haruna's "evil" twin sister, Natsumi. Natsumi is the opposite of Haruna, she's a forward, crude girl bent on taking whatever she can from her twin sister. Makoto is stuck in between Haruna and Natsumi, as they viciously fight over who will win him in the end.

(Source: Animexis)
Included one-shots:
Volume 1: Hikaru Challenge!, Detarame Machi no Kaigenshou

Aiko "Ai" Kasumi is an athletic, tomboyish member of her school's basketball club. She is very popular among the girls and can even outplay the boys' team, with the exception of one person—Leo Amano. His skills on the court are only matched by one thing: his popularity. Envious, Ai proclaims him as her rival, and every day after practice, they compare the number of love letters they each received, which always results in her loss.

In need of workers, Ai's brother employs her at his maid cafe called "Spica." Since she does not appear girlish enough, her appearance is changed with a wig and some makeup. One day, Leo visits the cafe with other members of the boys' team. Worried that they will see through her disguise, she tries to hide, inadvertently spilling drinks on Leo. As she is cleaning up after her mistake, suddenly, Leo asks to go on a date with her. After thinking about it, she eagerly comes up with a plan for revenge—she will make him fall in love with her and then dump him.

[Written by Animeranku Rewrite]
Included one-shots:
Volume 1: Tenohira no...
Volume 4: 18 made ni Shitai xx na Koto!
Volume 15: Yadogiri no Shita de Bokura wa Kiss wo Suru, Koisuru Tantei

Ryuuichi Kashima has always taken care of his little brother Kotarou due to their parents traveling most of the time. After the Kashimas suddenly die in a plane crash, an elderly woman named Youko Morinomiya offers to become the brothers' guardian until they both become adults. It turns out that she lost her son and daughter-in-law in the same tragedy. The teenage Ryuuichi can also attend the school where Youko works as chairwoman, on one condition: he must be part of the "babysitting club," which serves as a place to look after the children of professors.

At first, it may seem like a rough start for Ryuuichi, but with the help of his classmate Hayato Kamitani and many others, he will experience novel adventures with the children in the club.

[Written by Animeranku Rewrite]

Nozomi is a beautiful former actress who moves back to Japan from New Zealand. Upon arriving, she meets her fellow high school student neighbor Ryotaro. She then decides he needs to join the high school boxing club and helps him in his training.

Using Tezuka's characters, the very best artists were allowed to let loose and adapt his characters into short stories. (m-u)

The world of Croket! is one inhabited by both humans and exotic creatures such as anthropomorphic animals and where individuals called Bankers travel around the world to collect magical coins called Kinkas with their Kinka Banks. Kinkas are said to activate the appearance of the Bank Wizard, who will grant the wish of any Banker who collects enough Kinkas. The story mainly revolves around Croket, a young and scrappy Banker with incredible strength whose wish is to revive his father, a legendary Banker named Burger, who was said to be defeated by a villain Croket knows as the "Black Gown Man."

(Source: Wikipedia)

Takashi is just a regular fifth grader when a new student, Taro Tanaka, appears. Later Toby realizes that Taro is an alien and tries to find out more about him. He has many adventures with Taro.

A collection of one-shots, side-stories, alternative-stories, and omakes about the main series.

A human girl becomes a god!? "Tama", a human girl taken in by cat gods comes down to Earth from Takamanohara to become a great goddess!
(Source: Shounen Jump)

Ishikawa Takuya, a high school student who doesn't stand out in any particular way, is surprised when his principal asks him to take care of some transfer students. He is even more surprised to find that there are actually 30 charming female transfer students in his care, who have come from a boarding school that was destroyed in a fire! At first it seems like a dream come true, but then he notices their knives... and guns... what kind of school did these girls come from?
(Source: MangaHelpers)

Hyun-Bin has been surviving on the streets by hiding the fact that she's a girl. In a tragic turn of events, her beloved little brother dies and Hyun-Bin runs away from the begging, from the gangs - straight into the clutches of a rich family. Her life might have become better but it's far from rosy: she has to undergo strict training every day and guard the family's youngest member, innocent and princess-like Yae-Ha. There are only two rules, Hyun-Bin has to protect Yae-Ha with her life and no one must ever find out that she's a girl. It's a lonely and cold way of life but a fateful encounter with the delinquent Yun-Ha becomes a catalyst of changes to come, where loyalty and a sense of duty clash with feelings of love...

(Source: dollie_mixtures)