Originally Posted by
Meteor Weapon
Honestly...I wish this was the base story for EP4
"The Erzimaruts are an ancient civilization based on a distant planet who are responsible for the creation of Lillipa's technological society. Long ago, the Erzimarut's home planet was assaulted by a Dark Falz, who is now bound to the planet; the Erzimaruts, seeking refuge from the Dark Falz, escaped to a space station orbiting the planet. In order to survive, the race created android bodies known as "Dark Nix" and transferred their consciousness into them; the Dark Nix, due to the circumstances surrounding their creation, rely on Darker Factor to maintain themselves and naturally repel Photons. A chance encounter by the Darker Busters with a select few Erizimaruts begin to lead them both on a mission to save the race and defeat the Dark Falz once and for all."
Found it on tvtrope tho if anyone has more information about PSO2es story please do share.