The novel follows Richard Ranashinha Dvorpian, a handsome British jewelry appraiser, and Seigi Nakata, a bright and upright Japanese college student. The duo solves various jewel-related cases by unraveling the hidden psychological aspects of their owners that lie within the gems.
(Source: MAL News)
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"Houseki no Umareru toki (宝石の生まれるとき)" by Nagi Yanagi