Helgoland is set in 2034 after after a global apocalypse, where the North Sea island of Helgoland has become humanity's last safe haven. A totalitarian society has been established that only allows 513 people on the island and as resources are scarce, an inhumane 'social ranking' system evaluates the lives of the inhabitants according to their 'usefulness.' At there same time, a dangerous force from the mainland prepares to invade.
浅井一家在战争期间被疏散到奈良,此后便定居于此。这一家人由父亲茂吉、长女千鹤、二女儿绫子、三女儿节子组成。昌二是大姐千鹤已故丈夫的弟弟,留学回国后待业在大嫂千鹤家中,与三女儿节子是亲密好友。 有一天,昌二的一位朋友雨宫到奈良出差,三女儿节子知道雨宫和姐姐绫子是青梅竹马,所以打算将两人撮合到一起。明月当空,照在静谧的奈良城上,有情人能够终成眷属吗?