Just do a bunch of other quests if something doesn't happen straight away. In your case, you should check up on Lilly and actually talk to Emily in her room.
Follow the journal as it's mostly spot-on on what to do.
thanks also love your game, it's amazing, one of my top favorite Adult visual novels, I've been playing this game since it came out and I'll stay till the end, keep up the great work, and Happy holidays. I just wasn't paying attention to the journal, sorry about that, and thx again for your help.
