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.
Five years ago,
،قبل خمس سنوات
Vor fünf Jahren verließ
ein Expeditionsteam Island,
Hace cinco años,
Hace cinco años,
Il y a cinq ans,
une équipe de recherche
Cinque anni fa,
Cinco anos atrás, para confirmar
a veracidade da lenda,
Пять лет назад мы отправили экспедицию,