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...
they've forgotten how it feels 
to want to wear clothes.
dass sie vergessen haben,
wie es sich anfühlt, Kleidung zu tragen.
olvidaron cómo se siente
querer usar ropa.
olvidó qué se siente
querer usar ropa.
et oublièrent le besoin
de porter des vêtements.
che hanno dimenticato cosa si prova
a indossare i vestiti.
que esqueceram como
é querer usar roupa.
а носить одежду стало чем-то недостижимым.