Lin You has been suffering from unexplainable nightmares, all of which have him helpless at the hands of a pink-haired demon. Little does he know that his new pink-haired classmate at school, Yi Kui, is a dream demon that survives by feeding on people's nightmares, and Lin You is his next prey! But strangely, Yi Kui is unable to consume his delicious dreams, making him resort to befriending the boy to lure him in. Will Lin You end up falling into Yi Kui's hands? Or will he have the dream demon falling for him?

Xiaoxin Bei Mengmo Chidiao O is originally a webtoon series officially published in book format by Beijing Arts & Crafts Publishing House (北京工艺美术出版社) since September 2022. The series was published digitally in English as Watch Out for the Dream Demon by INKR, Tappytoon, NHN comico Corp. through Pocket Comics, and Webnovel; as Devour Your Nightmares by Webcomics; and as My Delicious Dream Boy by Tapas Media.