Weak people should not be bullied.
Mu Xingbing has a brave heart and loves to fight for justice. He fights without his life and hits hard. Even if he gets himself covered with bruises, he still doesn't want others to be bullied. Over time, his reputation spread throughout the school.
But Mu Yuyan couldn't see him being injured at all. Even if he was imprisoned and scolded no matter how hard he was, it still couldn't change his heart of loving justice and being brave. All Mu Yuyan could do was teach him to be strong alone and clean up his mess.
Intention: Live a happy life and be happy every day