It is a visual novel created by Japanese Idea Factory. It was first released in August 2011 available first for the PlayStation Portable. During the party Otomate 2012, the production of an adaptation to the anime was announced with a release in 2013.
In Japan, Amnesia is classified as an otome game (targeted at a female audience) and like most otome games, the player takes the role of the female lead who can choose among a variety of male characters as his "love interest ".
