To be honest I'm still confused whether Yayoi Wachi and Yayoi Fujimori are really the same person or not. I found a likely inactive
Facebook page for the latter, saying she worked at Kamiya Studio, yet doesn't list working at Sega which Wachi is known to have worked at. I also noticed that Formula One World Championship: Beyond the Limit credits "WATCH" and was released almost a year before Legend of Illusion Starring Mickey Mouse, which credits Yayoi Fujimori alongside Kamiya Studio. The Xevious VHD from 1985 credits her with Shigenori Kamiya too.
If there's any formal confirmation that they are the same person (which I haven't found), I'd be interested. Otherwise, I feel people kinda jumped the gun by identifying them as the same person.