Astrid's cold lasted for two full days. During this time, to prevent her bacterial cold from affecting Amalia's health, Astrid had to choose to sleep alone, no longer sharing a bed with her sister.
During these few days, Lyra clearly noticed that Amalia's mood was somewhat low, even less than usual during her menstrual period, as she even reduced the frequency of petting the cat.
It seems that not being able to sleep with her sister was a significant blow to Amalia.
Lyra had no other siblings and didn't know if Amalia's behavior was too clingy, but upon reflection, the sisters saw each other every day, so it shouldn't have come to this extent.
Princess Amalia... really likes Princess Astrid...
As time passed, in the third month of studying at the Elizabeth Academy of Magic, Lyra successfully advanced to an early sorcerer.
