夏なつへの扉とびら

Meanings

1

The Door into Summer

work of art, literature, music, etc.

Title of a 1957 science fiction novel by Robert A. Heinlein. Used as a proper noun.

「夏なつへの扉とびら」はロバート・A・ハインラインのSF小しょう説せつです。
"The Door into Summer" is a science fiction novel by Robert A. Heinlein.