“Wūyǒu Xiānsheng” 烏有先生 (Mr. Nobody) is the pen name used by the anonymous Qīng-dynasty author of KR4k0263 Xiù Xié Jì 繡鞋記. The name is a literary allusion to the fictional interlocutor “Wūyǒu Xiānsheng” in Sīmǎ Xiāngrú’s 司馬相如 Zǐxū Fù 子虛賦 (a figure whose name literally means “there is no such person”), signalling deliberate authorial anonymity in the classical tradition. No historical individual behind the pseudonym has been identified.