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...
and covered the sky with darkness 
to keep it all to themselves.
und der Himmel wurde schwarz,
um alles für sich zu behalten.
y cubrieron el cielo con oscuridad
para quedárselo todo.
y cubrieron el cielo con oscuridad
para quedárselo todo.
et plongea le ciel dans les ténèbres
pour prendre le pouvoir.
e hanno oscurato il cielo per tenerlo tutto per loro.
E cobriram o céu de escuridão
para mantê-lo para eles.
тогда же над нами нависла тьма, 
и всех стали контролировать.