Ordinary girl Jiang Wuyang transmigrates into a novel and becomes a useless disciple of the Su Lan Sect, someone everyone can bully. She gains a powerful mind-reading ability that allows her to see through people's thoughts and spot weaknesses in their techniques. With the sect's once-every-three-years Heart Tempering Trial approaching, the seemingly innocent senior sister Qiao Chengyin secretly plots to use her as a sacrificial offering in exchange for the Heart Tempering Pool's primordial divine spring. Seeing through every scheme, Jiang Wuyang pretends to be weak while secretly gaining the upper hand, carefully turning every conspiracy against its mastermind. Pei Zhao, the cold-faced sword-wielding holy son, gradually goes from watching indifferently to falling for her and protecting her. As the secret hidden deep within the Heart Tempering Pool is finally revealed, can she rely on mind-reading and cunning to rise from a bullied nobody to the formidable master who controls the fate of the entire sect?