This show is a rare treat. This OVA is from 1995, but it continues a series that went to OVA format as early as 1985.
I believe many of these tropes were codified by early live-action shows – possibly by Kamen Rider – but this OVA presents them delectably.
This show resembles a 1980s robot anime mashed up with Sailor Moon, which invites the question of how much Sailor Moon took from Kamen Rider.
I believe Sailor Moon came out as a manga in 1991, and was made into an anime in 1992, and this OVA is from 1995, so one can ponder how many common influences resulted in this OVA. At any rate, if you love classic 1980s anime, you’ll feel right at home.