Qin Mufeng knew about it more or less, but he didn't deal with it.
Dealing with it without Qin Muye's consent might lead to Qin Muye being a spoiled brat.
Moreover, he also wanted Qin Muye to learn to trust her family and to be open about any difficulties rather than bear them by herself.
Someone could openly say anything to their family.
Of course, if Qin Muye chose to not say anything, Qin Mufeng would still take action.
No matter how much he wanted his sister to be more open, he wouldn't let her be bullied.
"Silly girl, no matter what you do in the future, don't let yourself be wronged. You must tell us. Otherwise, they will think our family is easy to bully." Breathing heavily, Dong Hanbi was still irritated.
"Alright, it won't happen in the future. Moreover, I already know how to deal with them." Qin Muye sniffled and told them what Tan Mo had taught her.
Dong Hanbi's eyes lit up. "That is good."