アルトネリコ
Ciel Nosurge, full name , with the title translating to "World of the Girl -Requiem to a Lost Star-" is a life simulation video game for the PlayStation Vita developed by Gust. The player's objective is to help Ion, a girl with amnesia, regain her memories by entering her mind, which is shown as a broken world which the player can repair. Although not a continuation of the "Ar tonelico" series, it takes place in the same universe with many of the same elements and expands on the series mythos. The game was notably the first game to be developed by Gust after their merger with Koei Tecmo.