While the specific title may be a misconception or a localized fan name, several currently active or upcoming Japanese entertainment themes involve similar keywords or concepts:
: Japanese entertainment often utilizes alphanumeric codes. For example, foundational cyberpunk films like Tetsuo: The Iron Man and 964 Pinocchio are currently being screened in "Dead Media Society" retrospective events. While the specific title may be a misconception
: The Gekidan Shinkansen theater company is touring a production titled "Akechiko! - Steam Black Diamond, or the Island of Madness" in mid-2026, which features similar "Black" and "Class" thematic elements in its title. - Steam Black Diamond, or the Island of
If you can provide more context, I can help you identify the correct series: What is the or storyline of the show? Do you know the names of any actors or directors involved? - Steam Black Diamond