Everyone around Futaba expects her to grow up and become an adult, and she's lost the ability to keep herself mentally balanced. At the bottom of her heart, her childish self is still there, and still strong. One day she wanders into another dimension, a world where the light has been lost, and darkness rules. The people there exist as babies wearing only their underpants...
I remember all the time we spent together!
An all die Tage,
die wir miteinander verbrachten!
¡Recuerdo el tiempo que pasamos juntos!
¡Recuerdo el tiempo que pasamos juntos!
Tous ces jours passés avec toi,
Ricordo tutto il tempo
che abbiamo passato insieme!
Eu lembro de todo o tempo
que passamos juntos!
Я помню всё, что мы пережили вместе!