The world is a cold blizzard surrounded by memories. The trees cry out to forget the screams of the wounded, everyone is trapped like a caged bird squeaking for freedom. Little lost girl Yui has forgotten her past and the present but she is determined to know. Along her slow and torturing path she meets 2 people who may old the only hope in the world. She decides to lean against them, give her only hope to them. This is there only chance to save everyone from their cold, dark cell but will the past return when freedom is in sight and sadden them all...