entity Updated 2026-07-18 Topics: Culture

青柳碧人 / Aoyagi Aito

青柳碧人 is the Japanese mystery writer discussed in 99.很久很久以前,妖怪也推理啊… through 《很久很久以前,在某个地方有一具尸体》. The episode presents him less as a realist crime novelist than as a maker of rule-world puzzles: folk tales provide the shared setting, and the mystery craft comes from turning familiar magical premises into fair clues.

His source-scoped role is to connect 本格推理 with 民间故事推理改写. In the episode’s reading, he can use a magic mallet, an ogre stomach, animal transformation, time-stopping shells, and folk-tale role names because the reader already accepts those materials as part of the story world. That lets 设定系推理 feel playful instead of arbitrary.

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