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've never washed my underwear even once,
Ich habe meine Unterhose
noch nie gewaschen!
¡Jamás lavé estos calzones
¡Jamás lavé estos calzoncillos
Je vais balancer cette culotte
qui n’a jamais été lavée !
Non ho mai lavato le mie mutande,
Eu nunca lavei minhas cuecas
Ни разу их не стирал,