Initially, Granny Shang had thought that Shang Mo's sudden change in attitude towards Rong Mo was just for show towards her.
However, when she found out later on that he was for real, Granny Shang did not overthink things. After all, Rong Mo had a good personality and was likeable.
But now that she thought about it… could the reason be because he knew that Rong Mo was a girl?
That's why he knew that she definitely couldn't be an illegitimate son of his father?
Granny Shang did not know to laugh or to cry suddenly as she smiled at Rong Mo faintly. "Don't get flustered, I'm not blaming you or anything. I just want to know, does Shang Mo know about your gender?"
Rong Mo shook her head. "No! Granny, could you help me keep it a secret?"
"Why must you keep it a secret?" Isn't it good being a girl? It's so inconvenient for a girl to pretend to be a boy.