Faced with the neighbor's unreasonable demands, Zhou Tang did not compromise. From refusing gifts to calling the police, from collecting evidence to court confrontations, she always sticks to her bottom line. When Li Xiaosha was sentenced for defamation and her family moved out of the community in despair, she used her actions to prove that we must have principles and a bottom line in dealing with things. This story tells how an ordinary girl stays awake amidst the turmoil and protects her life with righteousness.