In case you don't realize,Katyusha is not aware of Nonna's presence in panels 1 to 5; that's why they don't greet each other good morning until panel 6, when Katyusha goes to school.
Somehow, it feels like Nonna and Katyusha,are together all the time!I feel the same way, KatyushaImmediately measured height0807 ShowerToday's Katyusha
Recorder: Nonna
Record Entry No. 256654.20800 Woke up● Katyusha DiaryDidn't even change by 1 mm.Used pull up bar for 8 seconds.0825 Breakfast0845 Go to schoolGood morning KatyushaGood morning Nonna!