First, when you are in the break room, go to the kitchen, (the first door on the left) then the counter, and click "Leave"
If you are talking about the delivery minigame, once you have started it, you can't leave :(
bro i click "leave " and it said it not time to leave and i do eveything until i Mc said " i have to go home" and yeah i click it and it said " during the shift cant leave"
When you begin the first shift head to the kitchen first and then do a shift, that should fix it.
that is a bug ashy nyuu will fix in the next update someone already had the problem before in the comments
First, when you are in the break room, go to the kitchen, (the first door on the left) then the counter, and click "Leave"