Chup Kamui is Japan's chastity goddess.
Chup Kamui was the Ainu people's moon goddess, but after spending one night overseeing the earth and witnessing humanity's immoral and lustful conduct, she asked her brother, the sun, to swap places with her.
She was transformed into the sun, and he was transformed into the moon.
She guards women from unfaithful acts and is a symbol of modesty and purity.
