Huo Jiling was 'educated' by Li Muyao on the way, so he became a lot more obedient. The topic changed from Cai Sixiu to Huo Jiling tutoring his two younger brothers in English.
Half an hour later, they met Li Muyu and Li Muyang at the school gate, who were queuing up to board the school bus.
"Brother Ji Ling, Mooncake, why are you here? Are you here to take us home? Do you have other arrangements?" Li Muyu and Li Muyang had been in school for a week. Every day, they would take the school bus to school after having breakfast cooked by Huo Jiling. After school, they would take the school bus home and get off at the door of their house. The journey was very organized.
Also, Li Muyu and Li Muyang were both 13-year-old boys. Even if there was no school bus to pick them up, they could still safely return home.
There was no need for Huo Jiling and Li Muyao to come and pick him up. Now that he was here, there must be some other changes.