Set in postwar Germany, this classic mystery layers a murder in a snowbound castle with a battle of wits surrounding an embedded story. Letters, memoirs, and other clues are folded together into a structure that invites readers to enjoy the act of being misled.

A memoir sealed inside a snowbound castle sends the detective game deeper into the maze.

This psychological suspense begins with a confession in a university seminar, centering on a female college student. A classic-mystery-style locked-room setup is layered with the protagonist's relationship with her senior and the shifting currents of their emotions.

A confession and a locked room push the protagonist and her senior toward the edge.

This title is recorded as a finalist for the 12th Ayukawa Tetsuya Prize, but no standalone book edition of the Kishida Ruriko version could be confirmed in public bibliographic sources. There was not enough primary information available to verify the text or its formal bibliographic details.

No public work synopsis could be confirmed.

At a girls' school with a junior-high and high-school division, a series of fatal falls among art club members leaves behind an unpublished manuscript, a locked-room puzzle, and a vivid portrait of the instability and unease of adolescence.

I want to become something transparent and ordinary. A full-length mystery that vividly captures the shifting psychology of adolescent girls.