Being obsessed with her hobbies of shopping and modeling, one would never expect her big brother Hiroshi to be a brilliant inventor for ZIC, a major technological corporation.

It all begins with Hiroshi's invention of the "Mol-Unit", a device capable of allowing an object to operate outside of the normal laws of physics.

However, things backfire when, out of curiosity, Mirai finds the Mol-Unit and tampers with the costume it generates, giving it a more feminine appearance.

To make matters worse, Nozumu, the youngest of the Ozora siblings, has developed his own Mol-Unit and created a supervillain persona to oppose his brother and sister out of spite.

Moldiver was originally released on VHS and LaserDisc in dubbed and subtitled versions by Pioneer LDC between June 1, 1994 and October 26, 1994.