The frightship Valentina Roja was returning to it's homeplanet
Gianmaru with a valuable and energyrich cargo of crystal ores.
Those would provide a years worth of energy for the highly
developed planet. But due to technical problems they lost control
of their ship and got caught in the gravity of another planet.
The impact damaged a container of the crystal ores and it's dangerous
radiation contaminated the area around ground zero.
Very few survived...
Without knowledge about their past and herritage, they are now
forced to live in a world full of simple minded people
with no technology.