Iczer-One (1985) Complete set

Earth is attacked by an alien race, known as the Cthulhu or Cthulwulf (クトゥルフ, kutourufu). According to their initial strategy, the Cthulhu use parasitic creatures, called "vedims" (ヴェデム, vedemu), to infest and replace humans across the world. Their hope is to eradicate humanity and take the world without damaging it in an open war. However, Iczer-1 appears and begins rooting out and destroying the vedims. Upon learning this, the Cthulhu plan to initiate a full military invasion of Earth.

Complete set of 3 discs with obi.