Upon reaching the age of 7 years, 9 months and 25 days, she was obligated to take part in the Demon Tag Ritual, like the rest of the young girls of the Himuro family her age. Every 10 years the entire Himuro family was obligated to gather at Himuro Mansion to perform a set of rituals to seal the Hell Gate, as well as prepare for the next set of rituals that would occur 10 years later. One of the rituals performed was a game of Demon Tag. It served as a means to select the next Rope Shrine Maiden and Blind Demon for the next set of rituals. The first child to be caught became the next Blind Demon for the next game of Demon Tag. Blinded was chosen to be the next Blind Demon in the same game of Demon Tag that Kirie was chosen to become the next Rope Shrine Maiden.
How many Blinded Maidens there were is unknown, what is known is that the last ever Blinded Maiden was the Blind Woman.