The protagonist Chen Xiaochuan's daily life collapses and his identity awakens, the identity and fate of the deliveryman are torn apart, he receives an order for milk tea to be delivered to an abandoned park on a rainy night, and the recipient asks for a receipt to be written in cinnabar. He discovers that the academy really exists, witnesses a handyman being dragged away by a shadow in a well, and a garbled order appears on his mobile phone.