The Similarity of Secrets

Work Guide

Background:
A psychological short story that utilizes the format of a confession to construct a crime or secret from the narrator's inner world rather than investigating it from the outside. According to the Aozora Bunko card, it was first published in the April 1926 issue of the magazine "Shinseinen" (New Youth).

Synopsis:
The narrator decides to confess their secret before it is discovered by the other party. As the explanation progresses, an unsettling "similarity" appears between actions and memories that previously seemed separate, and the confession itself transforms into evidence of a crime. Is the confession intended to save the other person, or to protect the narrator themselves? When two similar secrets overlap, the meaning of the text is inverted.

Literary Features:
The first-person letter/confessional style narrows the distance between the reader and the narrator, layering hesitation, self-defense, and fear within the same voice. The title "Similarity" (Souji) is the key to reading not just the plot, but also the repetitions and correspondences throughout the text.

Elements of Interest:
Using "confessional style, secrets, and psychological thriller" as entry points, readers should track the moment objects and places turn into evidence, as well as parts where the title's first impression begins to shift.

Reading Guide:
The structure and omissions of this short story become clearer by following how the information provided at the beginning is rearranged through explanations, dialogue, and scene changes. The reader should also pay attention to the pace of the writing, guided by the furigana and paragraph breaks.

Film, TV, and Stage Adaptations

Currently, no adaptations have been recorded.

Editions and Translations

The included text is the Japanese XHTML version published by Aozora Bunko. The source text for the work card is recorded as "Masterpieces of Weird Detective Fiction 1: Fuboku Kozakai Collection," published by Chikuma Bunko (Chikuma Shobo). This edition, which preserves the furigana, paragraphing, and kana usage, is suitable for experiencing the work's unique style, where the first-person confessional narrative narrows the distance with the reader and layers hesitation and self-defense. The effectiveness of the introduction—where the narrator resolves to confess before being found out—is best conveyed through a text that maintains the original paragraph breaks and narrative tone. Since the original magazine publication and the modern source text are different materials, readers should consult both the work card and the main text without confusing the publication eras. To the best of current knowledge, there is no definitive translated edition that lists a translator, publisher, publication year, and distinction between complete and abridged versions; priority should be given to any foreign language versions that clearly specify the translator and source text.

The Author and the Work

This work places Fuboku’s characteristic interest in criminal psychology within the structure of narrative rather than scientific identification. His observational eye as a medical scientist is directed toward the fluctuations in language when a human tries to hide a secret. Utilizing the confessional format, the story builds a psychological portrait from the inside out. The method used here—layering self-defense and fear in a single voice—provides a clue to how the author handles similar themes in different works. When comparing it to other works by the same author, the unique position of "The Similarity of Secrets" becomes clear by focusing on the scope of the narrator's knowledge, the methods of delaying explanations, and the distance between reality and fantasy.