Bianca and Mama Irene

And meanwhile on the other side, at this time Bianca had just arrived home and found her Mama waiting for her in the living room because the beautiful woman heard the news that while at school Bianca had fainted due to punishment from her homeroom teacher.

I don't understand who told Irene that Bianca had just been punished by her homeroom teacher, but it seems that one of the school's parties was deliberately asked to spy on what Bianca did while in the school area.

Even, for now, Bianca was not at all surprised if her Mama suddenly found out that she had just passed out at school just because of being punished by her homeroom teacher. Bianca could already guess that after this her Mama would scold her if she knew that the reason why she could be punished by the homeroom teacher was simply that she had defended her stepsister