I can understand the question related to Nocticula. But related to Shamira?

What game version are you running?

Can you share a screenshot of the quests you have done? To check if you found everything.

Are you declined entry to Shamira's den?

Take a look.

"Are you declined entry to Shamira's den?"
And where is that Shamira's den?

Well, it is actually the Harem of Ardent Dreams. But I was actually thinking of the den of the other other leader in the Abyss. What was her name again... the one who houses in the Rapture of Rupture, you can go on a date with. Vellexia! But that you have done already too. Hm...

Usually by now you should be able to enter the Harem of Ardent Dreams if you could not before. There you get the questline about the Nahendryian crystals from Shamira. When you have done that completely, where you also meet the storyteller, it should put Nocticula's attention to you.

I am not sure if it matters, but killing everyone (hostile) at the flesh markets gave me additional reputation points.

You sure still cannot enter the Harem of Ardent Dreams? In doubt wrecking the guards?

Nevermind. I just needed to talk to guard instead of just entering building. Ech, this game.