Switch to another place. Grandma Martha's death left deep scars on the people who loved her, not only Sunny but Qira too.
After the funeral is over, Qira completely falls for Isac's incitement to hate Sunny with all the stories cleverly weaving together, without omitting the story of the blood relationship between them.
The obedient, loving, and respectful attitude that Qira always gave Sunny disappeared, replaced by hatred. She even brought this hatred to people who had nothing to do with her grandmother's death. Qira carries her grudge and hatred towards Clover, who has never even met Grandma Martha.
Qira didn't move to the dormitory because Isac deliberately used his sister as the final bait before using Giselle.