You know who you are? Right? Of course you do. But how would you react to being in a world where forgetfulness looms large? A world where, within weeks of arriving, you can't remember your name. A world where every attempt at evasion leads irrevocably to getting lost and perishing. That's what happens to five young girls from the Dream Class. Abducted by rogue immortals, they have been stripped of their magical abilities and abandoned on an isolated world. To make things worse, after a few weeks, as forgetfulness sets in, the many girls stranded there become more and more aggressive. Surviving and escaping becomes a deadly race against time. Accompany these girls as they struggle against aggression and forgetfulness to discover a solid bond that unites them. But will it be enough to save them?