Phantasy Star 20 Years Past

This story took place in a galaxy far, far away. Twenty years ago, four heroes defeated the Darkness that was trying to destroy all life and brought peace back to the Algol Solar System.

Now, 2304 AW. On the planet Motavia. Emma and her sister rest in the town named Zema. For Emma, it was her first mission as a Guardian - special soldiers who monitor the ecological state of the planet and any of its deviations.

It was a beautiful sunny day. Nothing seemed to portend trouble, when suddenly, from the Birth Valley, came a strange noise...