Two domain locations, decide then master and servant pairs what location you wish to show up to. 

Nakano Broadway Basement - 
Sukiyabashi Crossing  - 

And also enjoy having your first IC post be a recap then of your first few days spent with your servants prior to the messages arrival. How did they fit in to your suddenly bustling schedule. For all wars have a small lull before the fray. 

Plus.. this obviously not a trap would cause some meetups to occur at least in one location no?