Guardian of Etter GoE

What, no life expectancy? Her entire family was murdered. Elle was also on the verge of death!
What is the plot of this story?
Who will you choose if you have the opportunity to resurrect one of your families? Before that, Elle had to be Etter's accomplice. It's a mission you couldn't have imagined before. Concerning intergalactic wars. Or the Imperial family's machinations. Or a love that blossoms again after a heartbreaking loss.

cover is mine