Hyo Sei as Gromwell. Oh Crap! It seems the voice actor for this is a bit jarring when you hear her voiced a lot of women in some Eroge works. Her most notable in the anime however is Being a Gym Leader.
No Export for You: A lot of the playsets in Japan never get a good western release. The same goes for the western ones.
For the OVA, its never been released outside Japan even with the built-in English dub and subtitles.