After Lin Wei, a graduate student in the Department of History, complained about Qingwen, she accidentally transformed into Qingwen from "A Dream of Red Mansions". When she just opened her eyes to mend her golden coat, she was pricked by a needle. The word "Shen" formed by the blood on her fingertips revealed the truth about Rongguo Mansion - this is a purgatory of rules shrouded in injustice. On the Haitang handkerchief handed over by the attacker, the rules written in red such as "Left foot enters the door" are shocking. Violators may go crazy or die.
Strange things such as the blind maid in red clothes and tangled hair frequently occur in the mansion. Lin Wei relied on the knowledge and vigilance of the Red Mansion to deal with the enemy, but it was difficult to distinguish between enemies and friends. A strange mooncake on the Mid-Autumn Night reveals the truth about the corpse of a woman in red. She helps Xiaohong clear her wrongdoing, but discovers that the corrupt secrets of Rongning's second house have just emerged, and she can only use the words in blood as a lamp to survive.