Pathway to Japanese Literature

Discover Japan's stories—across time, across language.

Opal-colored LettersAuthor: Hirabayashi Hatsunosuke

Original Title	オパール色の手紙
Author	平林初之輔
Genre	Detective & Mystery
Author Type	Male Author
Summary	A wife’s tranquil life fractures when she discovers opal-colored letters addressed to her husband—passionate missives from a mysterious woman named T-ko, proclaiming obsessive love and urging him to abandon his family. Consumed by jealousy, she spirals into surveillance: steaming open envelopes, spying through keyholes, dissecting every word. The letters’ brazen intimacy—confessions of stolen kisses, declarations of eternal devotion—shatter her trust, painting her husband as either a callous adulterer or the victim of a predator’s manipulation. When confronted, he claims the correspondence is an elaborate ruse to reignite their stagnant marriage. Yet fresh letters arrive, blurring truth and deception. Is T-ko a figment of his imagination, a cruel game, or a rival clawing at their door? Paralyzed by doubt, the wife oscillates between fury and desperate hope, her sanity fraying as she awaits an answer that may never come—or a betrayal that could destroy her. Love curdles into a labyrinth of lies, where every revelation deepens the shadows.