Mineral Exhibition and Manga Autograph Session Set for Shinjuku
The event pairs a niche mineral exhibition with a manga reprint promotion, using the manga's thematic tie to jewelry to attract a crossover audience.
Reporting from 1 source: ASCII.jp.
Mineral & Cafe Mineral Muru will hold a special exhibition and sale at Stella Gallery Shinjuku on July 18-19, 2026, featuring minerals, gems, fossils, and a gem kaleidoscope workshop. On July 19, author Yamasechika will hold an autograph session for the reprinted manga "The Maid of the Jewelry Shop," which the cafe supervises. The event is the first Kanto exhibition for the Hyogo-based cafe.
Mineral & Cafe Mineral Muru, based in Itami City, Hyogo Prefecture, is bringing its collection of minerals, gems, and fossils to Tokyo for the first time. The exhibition at Stella Gallery Shinjuku runs July 18-19, 2026, and includes a gem kaleidoscope workshop priced at 1,650 yen. The cafe also sells drip gem coffee and tea, which have sold over 30,000 units at previous mineral shows and its physical store.
The second day of the event features an autograph session by Yamasechika, author of the manga "The Maid of the Jewelry Shop." The session, scheduled for July 19 at 13:00, commemorates a reprint of the manga, which Mineral & Cafe Mineral Muru supervises. Attendance is limited to 20 people selected by lottery; winners must purchase a copy of Volume 1 at the venue to receive an autograph.
Synthesized by Yomimono from the 1 cited source below, including Japanese-language reporting where cited, then editorially reviewed before publishing.