Lu He, a rebellious and independent high school girl, owns a pendant set with a sapphire, and this gemstone has magical power. Through it, she can know the psychological activities of others.
With this gem, she tried her best to integrate into the circle of friends of her high school classmates, hoping that she could be recognized by any of her classmates.
She originally thought she could see through anyone, but she didn't know that Gems couldn't see clearly the mental activities of Bai Zhan, a nerd in her class.
Out of curiosity, Lu He began to harass the top student.