[DeepL Translation - needs review] This is a work by Jyuzo Unno, a writer in the early Showa period. While working at the Electricity Testing Laboratory of the Ministry of Telecommunications, the author continued to write science fiction, and is later called the father of Japanese science fiction. It was first published in "Shin Seinen" [1929]. It was published under the name Shoichi Sano. It was later included in "Juzo Unno Complete Works, Vol. 2: Diary, Letters, and Miscellaneous Compilati...
