C23 Hm You're Afraid of Me
"Why did you come to school?"
Su Ningning stopped in front of Chu Yichen and frowned. "Yes. Is there anything wrong with Grandpa Chu?"
In the beginning, Su Ningning called him old man.
However, she could not resist the old man's love, so she just called him Grandpa Chu.
As for the engagement between her and Chu Yichen, she did not take it seriously