Takahashi, Rumiko

What would you do if a tiger skin bikini-clad alien followed you to school every day? Poor Ataru's life has never returned to normal since volatile extraterrestrial princess Lum fell for him. Now an excruciatingly wealthy and genteel rival, Mendo, adds to Ataru's torment. Not to mention an unending stream of extraordinary classroom visitors and educational materials including incompetent cherry blossom spirits, a legendary nightmare-eating tapir, and a fourth-dimensional camera that breaches alternate realities.  

(Source: VIZ Media)

Urusei Yatsura

Lum*Urusei Yatsura

うる星やつら

Adachi, Mitsuru

The story is set in a place very similar in appearance to Earth in the Edo period. However, Adachi (the mangaka) regularly reminds the reader all throughout the series that the setting is another planet in the distant future which just happens to look like Earth.

After the death of his mother, Shichimi sets out to join his step-brothers and -sister who live together in Karakuri Tenement, a place provided by the father they have never met. He finds out that each of them had different mothers (all of whom have died), but were fathered by the same man. Not long after Shichimi's arrival, the siblings decide to journey to visit the graves of each of their mothers. On this journey, they encounter many dangers.

(Source: Wikipedia)

Nijiiro Tougarashi

虹色とうがらし

Yasuko

A collection of short stories:

Mayonaka Express (Midnight Express)
Getsuyoubi wa Himitsu no Romance (Monday is a Secret Romance)
Daydream
2-nen G-gumi Romeo to Juliet! (Class 2-G's Romeo and Juliet!)

Mayonaka Express

真夜中エクスプレス

Shimizu, Reiko

Note:  This entry represents the original publication with only 4 chapters.  Do not submit chapter changes to 7.

Mou Hitotsu no Shinwa - Eva is pregnant! What a shock... since she's the only human aboard this spaceship! 150 years ago, the sudden "shrinkage" of the Sun caused the destruction of the Earth, the Moon and Mars. Eva's parents and several technicians at Jupiter's base were the only survivors. The icy planet wasn't suitable for permanent dwelling, so they sent a fertilized egg into the space. Four robots were given the duty of raising the baby and finding a mate for her. They had spotted a man in a faraway planet and created an identical robot, Adam, to be Eva's husband. But they thought a human and a robot can't be a perfect match... no matter how much they love each other. Their plan is to leave Eva on the planet with the human Adam...

Napoleon Soro - During an annual robots' party Napoleon, an egg shaped robot, gloats about his owner and lover. "She's the most beautiful woman in the world and she loves me! She said I'm better than all the men." When she was 5 years old, she used to say "Round, round Napoleon is cuter than anyone else! Don't ever leave me! I want to marry you when I grow up!" Thus, Napoleon (nicknamed Mr. Egg Head by his fellow robots) is very happy about his appearance. But she's now a woman. She no longer remembers all those childhood promises nor would they mean anything to her. She wants to remake the old robot because she finds it embarrassing to have a servant who looks like an egg...

A Fairytale Judas - There's a special group of people who possess wings and are able to fly like birds. Because of their trait, they are caged and displayed like animals. They believe that a hero will rescue them someday.

A Million Pound Love - A 80 year-old lady ask a 20 year-old playboy to marry her as a last wish, in exchange for one million pounds. 

(Source: MangaArt)

Mou Hitotsu no Shinwa

もうひとつの神話

Takemoto, Izumi

A story about a part alien girl, Aoi Hayakawa, who transfers into the school which Hiroshi Morimura goes to. She then becomes a love interest to him.

Aoi-chan Panic!

あおいちゃんパニック!

Nagano, Noriko

It is about a boy named Techno who lived in a bomb shelter most of his life. He and his grandfather are amazingly smart. But one day Techno sees a girl named Hitomi on his yard. He instantly falls in love. He names her Daisy, even though she keeps telling him that's not her name. After 3 months of practice on a robot he decides to get a relationship started with her. But all he can do is stare. Then he decides to get full ownership of her, but she still doesn't really belong to Techno. Along their way on this crazy relationship, Techno's genius almost kills Hitomi multiple times. That includes making her 50 feet tall, making a replacement teacher that shoots laser beams, creating a giant slug, kidnapping her, and much more. More crazy things include a teacher that wears weird costumes, a harmless boy rebel that is wanted dead by Techno, his mom, and brother, Techno's over protective grandfather, Hitomi's friends, an android that wants Techno dead and to protect Hitomi, the 2 missiles that Techno befriended, and the rest of the class.

Misute♡naide Daisy

Don't Leave Me Alone Daisy

みすて♡ないでデイジー

Asamiya, Kia

In A.D. 1997. Having failed to conqer the Earth, Compiler and Assembler from Another World settle down in the residence of Nati and Toshi Igarashi whom they choose as their partners. As they start their literally unworldly community life, various Sudaran assassins arrive from Another World one after another to attack Compiler and Assembler, until, in good time, all of those begin to turn into old memories... Yes, in 2000, the last year of the century, Assembler has started to lead quite a different life --- a life as a "human being"...

Assembler 0X

アセンブラ０Ｘ

Nagano, Akane

Shiraishi Yayoi was a relatively unremarkable school girl, although a little clumsy, before a experimental accident changed her life forever. She was forced against her will by her father, self-proclaimed genius physicist, Shiraishi Sensei into a teleporter with a cat , and like in the movie "The Fly", she combined with the cat.

Now, whenever she gets excited about anything, a pair of cat ears and a tail pop into existence. In the "catgirl" form, she has super powers, but the major drawback is that she also behaves like a cat when presented with the proper stimuli, like the sight of mice. She also has a boyfriend, but her "problem" tends to interfere in their dates since her excitement inevitably leads to her transformation into a catgirl.

(Source: Taruby)

Neko de Gomen!

猫でごめん！

Yasunaga, Kouichirou

The evil secret society known as the Telephone Pole Gang seeks to take over the world by first taking over a certain prefecture on Kyuushuu (they never specify which one). In order to thwart the evil plans of the Telephone Pole Gang, Imazuru High School creates the Prefectural Earth Defense Force, composed of problem teachers and students from the school. They are also joined by a cyborg transfer student from India.

The Telephone Pole Gang is commanded by Chilthonian. Her staff includes Colonel Baradaki as well as Ryūko Harataki, who has taken on the role of a student at Imazuru High School.

(Source: Wikipedia)

Kenritsu Chikyuu Boueigun

県立地球防衛軍

Hoshisato, Mochiru

This is one of Hoshisato's first series, a romantic comedy about a youthful,  energetic, and reluctant transforming high school girl hero named Saiko. A passing alien sees her courageously defending someone in a fight and is impressed with her sense of justice. He gives her a small handheld device which allows her to change into "Lady Tail", a futuristic superhero sporting a ponytail.

However, she had just recently cut her hair after her boyfriend berated her for fighting too much. When she transforms into Lady Tail, her ponytail comes back, which causes her to initially refuse the alien device. Eventually her sense of justice comes through and she begins using the device to transform into Lady Tail and assist those in need of protection.

Cocktail Ponytail

かくてる・ポニーテール

Kanzaki, Masaomi

Aro, Hiroshi

Manabe, Jouji

Tagami, Yoshihisa

Shinohara, Udou

Tsuzuki, Kazuhiko

Satou, Gen

Yano, Kentarou

Miyahara, Nao

4 Spirits Plus 2

4Spiritsプラス2

Matsuzawa, Mari

Experience the robot maid occupation like you've never seen it before in Hinadori Girl. Support Robot: Sally 001 has just been completed by boy technophile Yoshiki. Yet her "hinadori" or Fledgling personality makes her ill-suited in her role as a maid and leaves Yoshiki very smitten with her. Evil teachers and jealous sisters round this quirky cast of slapstick literature.

(Source: DrMaster)

Hinadori Girl

ひなどりGIRL

Watashi wo Tsuki made Tsuretette!

Manga Like Watashi wo Tsuki made Tsuretette!