A character goes to see a dog known to live in a tourist attraction, but finds that the dog has passed away. The main dog in the series, however, does not die (as of yet).
Nadeshiko's older sister will sometimes hit and berate her (played for laughs) and at one point has her download an app so that she can monitor her location when she goes off on her own (portrayed as just being worried about her, but these apps are regularly used in real life to control children or partners).