Moon.

Ikumi Amasawa's mother, who worked for a large company called FARGO, died six years ago. Ikumi discovers the shocking truth: FARGO was responsible for her mother's death. In order to avenge this crime and find out more about the company's true identity and motives, Ikumi decides to become its employee. On the way there she encounters two other young women who, similarly to her, had their lives ruined by FARGO. Once Ikumi arrives in the company building, she will have to be careful to conduct her investigation discreetly and achieve her goal.

Moon. is an adult mystery-themed visual novel. The interaction is somewhat more frequent than in most games of its type, since the player will often have to actively choose locations to navigate the heroine to. These and other choices made by the player will influence the course of the storyline, unlock plot information, and lead the game onto different paths culminating in different endings.