I'm a bit dim. Hoow do I get a new contract? I finished the first one and she just says "I've already completed this contract."
More become available in chapter 2. Sleep in Mila’s bed if you finished the plot in the library to advance the story.
Ah! I figured out the issue; I'd forgotten Mila had her own separate roo away from the others instead of using one of the shared beds! Thanks!