WiFi-connected Backup storage to leave at my parents’ house?

Looking for a simple device that does the following:

1. Turns on when plugged in
2. Connects to my home NAS and syncs changes
3. Repeats daily on schedule

Any simple, low-maintenance offsite solution like this that I can set up once and periodically check-in on? This will just hide in a bedroom at my parent’s house connected to their wifi.

Even a MyCloud-type consumer junk device would be fine, just need that offsite without too much headache.

Thanks!