Does anyone know the exact requirements for process for getting Camillia? 

Also might as well ask about Hilent while I'm at it since she is mentioned once on the guide and never again XD. I have slave Angie and Doll Sarah. I'm thinking doll Sarah might have to be free to get the "secret" to trigger and the Camillia introduction sequence to play. 

I also thought I might have to enslave Angie before I trigger the "plastic" stone skin scene at the start which I tried and it hasn't seemed to have worked. 

I am also trying to get Ashley. I'm on the alt berserker route. I didn't have Sarah's mom at the exact moment I needed her. Furukawa's guide says that if you hang around level 15 for enough time there's a tiny chance you can get Ashley's soul back even without Ghost mom. I'm wondering if I'm somehow soft locked out of triggering this dungeon scene because I'm on the alt route and I used suppression to calm her at the start or something. 

Might be a bug but I'll keep trying. Anyways any help will help out. Especially if you know how to get Camillia and you post it here for future players. I'll keep trying to figure it out though, thanks!

Edit: I triggered the Ashley scene. It works it just takes awhile. :P

Alright. I've figured some stuff out , guys.

Firstly I figured out how to get camillia into a complete run.

You have to let Doll Sarah go and not cast suppression after you leave her for 5 levels. You can then find Camellia's introduction in the town. After that you need to follow the guide to get Camillia and get Sarah either through the booked story or the second date

If you get Camillia using the book she will be in your room after you've leveled up once, I think. If you date Sarah you have to 1.answer lakes 2. suggest making out 3. lead the way. 

Wait till her second date once she's like level 12 then cast suppression during the target practice scene by the lake. You must also only be Dan because Sarah doesn't date chicks.

Can you tell the step by step process and the requirements to get Camillia

I read your other post. I'm not quite sure. It might just be that you need to level up a bunch or there may be a floor depth requirement.  you may have some how messed up the dialogue.  I think you just have to say the right thing in the room. Or it might just be bugged.