Youth campus novel, so heartwarming~ "Let me in." "No!" "Here you go with your math homework." "Hmm~ um~" She hesitated and shook her head vigorously. He was stunned for a moment, then recovered, "If you don't let me, I won't even be able to copy my math homework for you." "Master, please!" She started busy, pegging like a pug raised by Qi's family.