Welcome back! I'm not sure, as the wiki is fanmade, but for Cassie, the main thing is to get Arlene's help!
You can bring Cassie and Rinny to private dungeon right now. Working on Fawn, as well as getting more equipment set up!
Ah, thank you for the reply. Do you have any plans for scenes in the dungeon involving usage of the bondage clothing set? (Arm bindings, bit gag, blindfold, etc.?) Anyways, very good job on the game. Loads of content, and generally well made. The characters are likeable and the arcs are almost never tedious. Just overall great.