Ishikawa Sayuri was released in a very normal way.
Each single has a different title song.
It refers to the Type A.........X series, where all side A songs are the same and only side B songs are different.
The worst single among them is Kaori Mizumori's single.
Since the sound source is not even released, we must purchase the single album to listen to the B-side song.
That's why I sometimes write criticism on YouTube promotional videos of record companies.
And sometimes I don't even give it a good rating on Amazon Japan, and I explain why.