First chapter in ages! Frankly, not at all what I personally was waiting for. We're still stuck in the infinite flashback arc, and it doesn't seem like a good idea to put aside MCs for so long, I have a feeling that many have already forgotten what's this story all about and may lack the motivation to give it a reread. I can only hope that when this manga is completed, we'd all agree that this flashback was a) absolutely essential for the story and b) inserted in the best possible place of the story. Otherwise it'd just remain poor pacing made in an attempt to attract BL fans.
That said, this chapter is good. The author sure knows how to hit the right notes in a concise story - I very much enjoyed how the plot was told both through the words and drawings, it makes an impact. Turns out the current queen's not so bad, she even used to have a relatable personality, but as it often happens, harsh life made her evil and twisted.
I hope we'll get to see more of Luna and Lis next time (or at least Henri and the plot he's involved with).