In the year 1976, an alien species called the Orgapiens has invaded the Earth and three sisters, Ayame, Renge and Sumire have to pilot the Z-Mind to stop it.In the year 1976, an alien species called the Orgapiens has invaded the Earth and three sisters, Ayame, Renge and Sumire have to pilot the Z-Mind to stop it.In the year 1976, an alien species called the Orgapiens has invaded the Earth and three sisters, Ayame, Renge and Sumire have to pilot the Z-Mind to stop it.