Khione had quite a good impression of Astriela after getting to know her, the two of them talked for a while, completely ignoring Lux.
He was quite upset by their attitudes, as it looked that he now became just an extra, exactly like his father-in-law.
A few minutes later, Astriela turned towards Lux and asked him, "What have you done these past weeks? You also seem to have gotten stronger, and I have a weird feeling from you."
Lux pondered for a while, he thought that maybe Astriela felt the changes going on in his soul, this also gave him hope that maybe he was right; some factions really had a deeper understanding of the Soul, compared to others.
Lux began telling Astriela what he's been going through, including the war on Earth and outside of it, against the four-now-three Empires that tried to conquer his planet.
He didn't mention anything about the demon race though, the reason should be obvious.