What is "sogna"

Sogna (Italian for "It Dreams" or "Dream" at the present imperative tense) is a now defunct eroge/ bishōjo company from Japan. Originally created in the early 1990s, Sogna became well known for appealing, simple and well-animated eroges that have received a moderate cult following.

Each game generally features young Japanese girls who, in one way or another, find themselves either kidnapped or attacked by monsters, cyborgs, or aliens; or are just men or women lacking in moral fibre. While some games have two or three different game paths available to the character, neither of these are particularly hard to obtain, and the games are considered to be more like animated slideshows than real bishōjo games.

The company went bankrupt around 2000, and their last game was released in 2003.