Lu Jingtang transmigrated into a book to become a vicious female supporting character. To save her life, she reined in her sharpness to please everyone, but unexpectedly, it instead made Fu Nanyu fall for her. After Ji Yunyin was reborn, she turned dark and sought revenge, framing others which instead promoted the relationship between Lu Jingtang and Fu Nanyu. Lu Jingtang was surprised to find that transmigrating into the book was actually returning to her original native world. As the truth gradually became clear, the entanglements of the three also escalated.