Battle Through the Heavens: I Sneaked a Peek at the Library, and You Call This a Heaven-Rank Technique?

Xiao Chen transmigrates into Battle Through the Heavens and becomes a collateral member of the Xiao family, a complete good-for-nothing! Fortunately, he binds himself to an Appraisal System. But the results it gives are all wrong! “You appraised a weed and called it a top-grade Heavenly Spirit Grass?” “You called a branch a medium-grade sword that can cleave stone and split the sky?” “I picked up a trash book, and you’re telling me it’s an Earth-tier cultivation technique?” So when he faces Yun Shan, a Dou Zong expert, Xiao Chen kills him with nothing but a rusty kitchen knife. But the System chimes in: [Appraisal complete. This isn’t a kitchen knife. It’s an extremely high-quality Dragon-Slaying Saber, capable of killing Dou Zong experts!]