Seeing Li Chuntao coming towards him and greeting him, Yang Dong nodded and said, "Oh, you're here to buy books?"
Actually, since Li Chuntao and that chubby man appeared at the door, he'd noticed them with his peripheral vision.
He also saw their actions at the door, blowing their whiskers and glaring.
He was a bit confused as to why that chubby man disliked him so much.
Could it be because he didn't want Li Chuntao to talk to him?
Even though their voices were quiet at the door, he could still hear; the man's tone was the same as at the Silver Pavilion, very doting towards Li Chuntao.
Their relationship seemed out of the ordinary, which might be why he minded Li Chuntao talking to him?
Perhaps that chubby man liked Li Chuntao, maybe they were childhood sweethearts?
But no matter their relationship, it's not something an outsider like him should meddle in.
