I got more advertising emails in my inbox while I was away last week, advertising a new Horie Mitsuko CD - "Choshin Neiga Utakko Zenshu". On 27th June, the day the CD was released.
The only videos with music I could find on youtube have this song which sounds like Mizuki Ichirou to me...
The Mizuki Ichirou CD was advertised to me sometime last year, but this is the first time I've heard the song. At the time I was thinking it was a live-show only, but now I'm not sure if it's a TV hero show too...
This live show video has an amusing bit at the end where a monster gets up on stage with a guitar and starts to sing "Mach Baron" really badly...