Mamoru Miyano and Tomohiro Kamiyama return to Gekidan Shinkansen for a musical mystery in Tokyo, Fukuoka, and Osaka

sankei.com (Japanese)

Mamoru Miyano and Tomohiro Kamiyama will star in Gekidan Shinkansen's new musical play. The production, titled "Akekiko! ~The Steam Black Diamond, or The Island of Madness~," is part of Gekidan Shinkansen's 46th-anniversary season and will premiere on June 12, 2026, at EX THEATER ROPPONGI. The play is described as a slapstick musical mystery set in a steampunk world with a Taisho Roman atmosphere, featuring two detectives and a cast of eccentric characters.


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Mamoru Miyano and Tomohiro Kamiyama return to Gekidan Shinkansen for a musical mystery in Tokyo, Fukuoka, and Osaka | News Minimalist