Not much is known of her past living with Sakanya and Sakuya, nor the reason why she left when they were young, but Hazakura is Sakanya and Sakuya’s older sister, who had been gone for years. It’s said she left her family to avoid the responsibility of being the guardian of the shrine, but nobody knows for certain why she left when she did. All we know is she’s back and still kind and caring as ever