Hou Yi in Touhou

Junko may be based on Chún Hú (纯狐), a Chinese legendary figure mentioned in the Zuǒ Zhuàn historical narrative and Tiānwèn poems. Chún Hú, also known as "Xuán Qī" (玄妻, lit. "dark lady"), was the wife of Xia Dynasty ruler Hòu Yì (后羿). Yi usurped the previous ruler (Chún Hú's former husband) and married Chún Hú, having a child with her named Bó Fēng (伯封) who he later killed. Chún Hú then conspired with Yi's minister to kill him as revenge. This account seems to line up with statements about Junko's past from Reisen's ending in Legacy of Lunatic Kingdom.

Despite sharing a name, the Hou Yi of the Xia Dynasty was not necessarily the same one who married Chang'e and shot down the ten suns in legend. The conflation of various historical figures named "Hou Yi" has been the subject of at least one contemporary academic paper. Within the Touhou Project however, the disparate Hou Yis appear to be treated as a single person.