The Case Files of Jeweler Richard Official Fanbook: Étranger's Jewelry Box

The Case Files of Jeweler Richard Official Fanbook: Etranger's Jewelry Box (宝石商リチャード氏の謎鑑定公式ファンブック エトランジェの宝石箱) is the first fanbook released for The Case Files of Jeweler Richard novel series.

Contents

 * Pin-up poster of fanbook cover
 * Novel cover gallery
 * Initial designs for Seigi and Richard
 * Manga illustrated by Utako Yukihiro