In an underground shelter-city encased in ice, Setsuna meets a young girl named Rinne and begins helping her with a mysterious invention. It can apparently help save the world, but its true nature is unclear. Meanwhile, the city itself will very soon perish.
I don't want to see stairs 
again for a long time.
لا أريد رؤية سلالم مجدّداً ولمدّة طويلة
Ich hab für ’ne Weile
genug Treppen gesehen!
No volveré a subir escaleras
por un buen rato.
No volveré a subir escaleras
en un buen rato.
J’en ai ma claque, des escaliers…
Non voglio vedere altre scale per un bel po'.
Não quero ver escadas de novo
por um bom tempo.
Ненавижу лестницы!