Yasomagatsuhi-no-kami is a deity from Japanese mythology, appearing in the Kojiki as one of the kami born from the impurities and pollution that clung to Izanagi during his purification rites after returning from Yomi, the land of the dead. Associated with the concept of magatsuhi, or misfortune and calamity arising from defilement, this deity represents the negative forces that ritual purification (misogi) seeks to cleanse and dispel. In Shinto thought, such deities are often understood in connection with the origins of pollution that necessitate exorcism and purification practices, though the precise nature of veneration or worship associated with Yasomagatsuhi-no-kami is not extensively documented in historical sources.