The story seems to have many elements from PSII
besides the similarity of the planet's names and star system name we have:
- An artificial satellite colliding with Parma's surface (I mean Parmu)
- We are agents/guardians like Eusis and our boss reminds Eusis'
- We have a little sister (nei at some point was a little sister to Eusis)
- There is a Motherbrain and she also becomes mad...
- There is a secret about our ancestor (instead of beeing our grand grand mother... is our father)
- Lou "dies"
- A guy named Tyler saves our skin
as you may know there's a an official moving comic here
http://phantasystaruniverse.com/downloads_comic.php