First time away from home! A night with only sibling cats

This time, Mom and Dad stayed out overnight together.
We have had one of them stay overnight before, but this is the first time for both of them to stay together.
I wonder if Sasami and Horun were able to stay at home!
I hope they didn't cry because they were so lonely? 😭
I hope the siblings worked together and did their best? 😭