Three thousand years ago, there was a green star named venus whose
environment was similar to the earth's. The star was destroyed by the Satan
Empire who had invaded only into green stars in order to get their energy
sources. Just before the explosion of venus they had made Princess Redia
deliver Vectaman's DNA and its revival system to the earth. In the meantime,
the Satan Empire finally discovers another green star, the earth and is ready
to attack it under command of Medusa. Princess Redia and brave Vectaman
warriors fight against the Satan Empire, but Redia dies of heavy injury.
Virginia who has the same constellation beyond space and time as Redia's
gets to carry out a role of the late Redia. Medusa sends a commander Bug
to
his headquarter in the earth...