The girl was used to being treated badly by the people around her. So when someone bullied her or yelled at her or even did something worse than that, she wouldn't falter. Xiao An Na was used to things like this.
"Never get emotional when dealing with people like that. It's a loss to serve them. Your energy will be more useful if it is used for other things," said the girl again.
"As long as they don't hurt you, then just let them be."
"You can fight them if you believe you can beat them," she added.
"If you're in doubt, you better shut up and let them say whatever," Xiao An Na stroked Lily's fur softly.
"As humans, other people's words are beyond our control, so don't focus on things that are beyond our control."