Sang Jiujiu woke up to find herself transmigrated into the bad novel "The Psychiatric Hospital's Hundred-Billion CEO" that she had complained about, becoming a resident on the third floor of a sanatorium. As an out-of-wedlock child of the Sang family, she was sent straight to the sanatorium right after being brought back home. Since everyone said she was confused, she simply let go of herself, calling herself "Zhen" (Emperor), taking the fourth-floor resident Chu Wenye as her great-nephew, and making all sorts of jokes in the sanatorium every day. However, what she didn't know was that Chu Wenye wasn't truly confused; he had endured hardships for years, all to protect everything he wanted to guard. Two seemingly absurd people matched wits under the same roof, gradually developing romantic feelings in repeated clashes.