Continuation for the Bus 1 event
How to trigger it:
This event can happen when you're travelling/choosing a location to go (in the map room) after day 30th.
Requirements:
You must've seen the event Bus 1 (it happens after the day 20th in the map room and selected the option "Don't move" (Lust level >= 2).
The continuation for this event (Bus 3) is coming on Wednesday. Where you'll get to know more of Vesper's backstory.
*Oh yeah, sleeping reduces 40 fatigue instead of 30, and random clients give you 15 fatigue instead of 20.