The story is set in very distant future, in a time when mankind is just recovering from decades of war fought between Earth and a terraformed Moon. The war was so devastating that it set technological progress back by decades if not centuries, which is why the settings don’t look futuristic. Although the world is now at peace, there continues to be distrust between the Sphere Kingdom (Moon) and the Earth Federation. Travel between the two is restricted for diplomatic purposes and confined to a single spaceport on Earth.
So anyway, one day the lunar princess, Feena fam Earthlight, comes to the protagonist’s house for home stay…
Mizoguchi Haruki, a newly-minted salaryman who doesn't care for those around him, and Kamiake Minori, a world-weary young shrine maiden who isn't interested in her peers. However, one chance enoucnter brings them together...
In a mountainous town there is a serial murder case with all the victims' necks cut off and either heads or bodies taken away. Main character is a student from a parallel world who claims that his twin brother and sister heads got replaced in early childhood. Normalcy and absurd come together in this investigation.
Main character's parents get killed on the Christmas night by some red shadow. Eleven years later a wave of mysterious murders occurs at the town. All the witnesses can only say that killer just disappears in the air. Main character already knows by his past memory that the murders are caused by a vampire. He takes a sword and stands on the path of revenge. Mysterious girls join him in this quest.
This game tells the story of seven long-time friends. How they grew closer or further apart as they got older. The story is presented using a blog-like interface.
It has been a year since the Kanenone Gakuen transitioned into a co-ed school, integrating female students into a previously all-male high school. The school closure riots that followed were temporarily settled and the summer vacation was coming to an end by August. Yuusuke and Futaba are still fighting as usual, but they managed to keep it afloat. Everything seemed normal again, until suddenly... a fire broke out in the girls' dormitory! And now the girls have to live alongside the boys in their dormitory.
Yuusuke tries his best to make love amid all this, but he is now in trouble when a girl he has known since childhood shows up, and he starts to share a room with twin sisters!
An unprecedented ordeal looms before the two of them!
This is the final part of the series, filled with joy and conflict!
The anonymous protagonist is diagnosed with lung cancer shortly after his twentieth birthday, and is admitted to hospice care at a hospital in Mito, Ibaraki. There he meets Setsumi, a woman who is two years older than he is, who is also terminally ill. Finding that they both refuse to die in the hospital or at home with their families, they run away together in a silver Honda Integra belonging to the protagonist's father.
Main character comes from a powerful family and thus has everything he wants. His colorless life gains new palette after meeting a girl who introduces him to the world of sensual pleasures. But one day mansion inhabitants rebel against such life and try to find their own happiness.
Under the Moon: Crescent is a port of Under the Moon. It censors the erotic scenes from the original game, but adds new event CGs, a new scenario, and several endings.
Gift is a story that revolves around high school student Amami Haruhiko and his strong connection to Gift's mysterious power.
The town of Narasaki-chou, where Gift's story takes place, has two distinguishing characteristics: a rainbow that seems permanently fixed in the sky no matter the weather, and an ability known as Gift possessed by all its inhabitants. Gift's power can only be evoked by each person once in a lifetime, and is able to grant a single miracle. To be successful, a Gift must reflect the shared feelings of both the giver and the receiver. If the feelings are not mutual, the Gift is distorted and has the ability to wreak havoc on the surrounding area. When this happens, a black streak appears in the rainbow above town until Gift is used correctly.