Zhenhai and Xu Aijin didn't expect their daughter to be so outstanding. Wasn't she raised by a janitor since childhood How could she play the piano and even win awardsBai Muyao hurriedly brought her p...ust then, a jovial old man walked over, “What are you all talking about”Everyone turned their heads to the sound and quickly shouted, "Principal Cao."Lao Cao is the principal of Peking University. Whe...