requesting the name of an artist from Exkaiser

Since I’m not requesting a song, I didn’t think it seemed right to ask there.

I’m wrecking my brain trying to find out the name of the artist who sings "Gather Way", opening theme to Yuusha Exkaiser (all the way back to 1990). I’m in the process of labeling all my Yuusha songs, and that’s all I’m missing. Any leads are appreciated.

I believe the singer is Azusa, just in case you haven’t figured it out yet.

Upon further digging and digging, I’ve come across the name Hidemi Miura. The name of the singer Azusa, if I’ve researched correctly, was a member of Coco, who did a single in Ranma 1/2 (Equal Romance & So Many Memories). The timeline fits, but that’s all I can tie together.