Aoi Taiken

One of the first erotic OVAs.

The first volume is based on the manga by Hachurui (羽中ルイ), it would also have a live-action version released almost at the same time and starring AV actress Nakamura Kyouko, both produced by Orange Video House.

The second volume is an original screenplay by Kumazaki Satoru who also directed that episode.