AMNESIA is a visual novel series developed by Idea Factory for the PlayStation Portable on August 11, 2011. The first sequel, AMNESIA later was also released for the PlayStation Portable for March 15, 2012. The third sequel, AMNESIA Crowd, was released on April 18, 2013. An anime series adaptation of AMNESIA was made by Brain Base studio, written by Touko Machida, directed by Yoshimitsu Ohashi and aired starting January 7, 2013 and ended March 25, 2013 on AT-X, KBS Kyoto, SUN TV and BS11 Digital. The next sequel of the AMNESIA game series, AMNESIA, Memories, was released on December 19, 2013 for the PC and the PlayStation Vita. AMNESIA World was released on May 22, 2014 for the PlayStation Vita. The most recent release of the AMNESIA games is AMNESIA Later x Crowd V Edition was released on October 16, 2014 for the PlayStation Vita.
AMNESIA takes place in a totally fictional world where a young woman has awoken with no memories of her life including the people she knows and her name. All she has with her is a mobile phone with contacts she is unfamiliar with and a mysterious young boy, Orion, who only she can see. Orion guides her to try to remember who she is and to make sense of her already existing life such as her boyfriend, friends, school and other daily encounters. Unable to regain her memories, she decides to create new memories at the cost of her previous life.