A collection of short stories revolving around sci-fi themes: Earth's Final DayKyoko's DreamHappy EndA Tiny Little CometThe Giant Tree, Elkido

Thanks to deviant sexuality (lolicon, obsession with 2D girls, etc.), the human birth rate has declined, and humanity is headed for extinction. A cute loli girl from outer space, called Muumo, has come to earth...

The human race has spread its roots into the far reaches of the Universe. In Space Era 0156, war breaks out between the different colonies that inhabit Space. The Earth colony begins to construct a new space...

The plot involves an alien empire from the planet "Dada" called the "Robot Army Corps". When they kidnap a human scientist, Dr. Hayami, and two of his three sons and force him to improve their technology, he...

An alien, Mumu, who came to regain the technology lost by his race. The everyday life of an ordinary college student collapses because of his arrival...? A cat shakes the earth! Spectacular romance!!

"It's said that 95% of UFO sightings are shams, but...?"

Puruka is a parasitic alien who came to Earth in order to have offspring. After being saved by a busty high school girl named Fuuka, he begins to live inside of her head. It seems like he'll easily be able to...

The series' protagonist is Takashi Horimachi, a fifth grader at "Anytown" Elementary School. A transfer student named Taro Tanaka enters Takashi's class. Taro Tanaka turns out to be a space alien. Takashi...

A spaceship lands on a bathhouse which belongs to Kazuto's family. Inside is Princess Warukure (Valkyrie) who gives part of her soul to Kazuto to save him from death (caused by her crash). Since she only has...

The world is being assimilated by a crazy religion, and to stop it I have become their satan. The religion is controlled by aliens, and people don’t have a clue. The world says that aliens don’t exist, but they...

Meet the top delinquent from Mars! His name is Ukita Kikuchiyo and he's now trying to take over new turf on Earth after switching schools but due to living in Mars’ low gravity, he quickly finds out he's quite...

Inspired by the Famicom games "Ultraman Club", this is a gag manga version of Ultraman featuring super-deformed chibi characters.

A comedy 4-koma manga that reimagines the monstrous kaiju from Ultraman as adorable high school girls!

Of Doraemon fame, Fujiko F Fujio asks what the world would be like if super powers belonged to a less-than-ideal superhero, Kuraku Kento.

The fierce battles with popular monsters such as the Baltan and Mefilas aliens are fully recorded along with the color pages from the serialization and the chapter covers!

"Why won't this city get destroyed..." Chiho, a middle school girl teased for not having a smartphone goes to the seaside to vent her anger, there she meets the strange creature, Q!! Chiho takes a liking to Q...