The DaemonS and The Seraphim

[Danny-boy]

The Seraphim do not consider themselves to be PURE, or that they have attained PERFECTION. They are what they are, and they only want to peacefully coexist with others.

They are people of purity, integrity and love

So they don't consider themselves pure, or they do? Please decide. As for the attainment of perfection, that was me comparing your line about 'purity, integrity and love' to how the Seraphim view themselves in SupCom, in which one of their aims is to attain perfection.

Also the part about them wanting to 'peacefully coexist with others' is exactly the same as in SupCom, until they are attacked by xenophobic soldiers.

I see the same name and a lot of similarities between the two.

Edit:

The war between the Seraphim and the Daemons took a heavy toll on their lives and the "homeworlds" of both factions. These particular ones lost their only ways of returning to their own planes, and they have no idea if the war is still happening. While exploring this new space that humans call "Sirius", they eventually met each other again, and continued the fight that has cost them their former lives.
They still fight each other, because that is all they have done...for far too long...

You say they 'lost their only ways of returning to their own planes'. At the end of SupComFA (A continuation of the story and first game) The Seraphim were cut of from their home plane, not just their world but the plane from which they came.

You also say that when they met they 'continued to fight'. Just like we are told in the ending credits of SupComFA happened with the Seraphim and the Aeon.

'They still fight each other, because that is all they have done...for far too long...' Whilst I must admit this does not particularly occur between the Seraphim in SupCom and the Aeon, it is pretty much the story of the first game, in which an 'infinite war' is being fought.

Edit x2: I'm not trying to kill your idea or anything and ask that you not take this personally, I am simply stating what I see.