The world has been brought to a near-apocalyptic state by a mysterious virus that turns people into zombies. But thankfully we’ve found the only method to keep the zombies at bay, and that is… Having sex...

This is a story about a girl with no life experience. After being told by a friend that she is behind in experiencing life, Sakina starts having strange fantasies about her childhood friend and now boyfriend. ...

It's an age where aliens, monsters and other dangers threaten the Earth, and various heroes have risen to protect it. Supporting these heroes are the human defense forces, of which the sisters Kitajishi Miyuki...

After the meteorite "Artemis" collapses on the moon, an unidentified phenomenon affects humans: the "Reproductive system disease". 12 years passed and mankind has done research in the field of cloning and...