That's why I'm not happy with the current copyright law.
The "creative work" may eventually go into the public domain, but when that happens, can you find a properly stored copy? Can you find any full recordings of Takarazuka from 70 years ago?
This 11 minutes clip from 1968 shows the Takarazuka Revue. But what's the title of the show? Who they are? Maybe takarazuka has the full recording, even the original film, but will they publish that? Of course not. The same thing applies to games.
Companies make money, but they don't care about their consumers. Or, maybe, you will be a consumer if and only if when you pay.
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Takarazuka Revue - extracted from movie Die grösste Schau der Welt - Die Girls von Takarazuka (1968)
by Rodion Zhirnov
https://www.youtube.com/watch?v=Ph3Zgk4EaVo
From the comment, the main character in first section might be 眞帆志ぶき, performed in Paris. But I didn't find any info from the wikipedia nor google.
Also, according to wikipedia, 眞帆志ぶき died of pneumonia on March 9, 2020.
Here is a post related to this clip, written in Japanese, which I can't read: https://ameblo.jp/kazesayaka/entry-12611307221.html