Tsubomi Kido/History

Kido was the second child of a rich family. When she was younger she was always looked down upon and wanted to disappear. One day, her father's company became bankrupt, so he set fire to the house in despair. Kido and her sister were touched by the Heat-Haze and Kido was possessed by the snake of concealing eyes.

After being adopted by the Tateyama family, she met Seto and Kano with similar eye abilities. After being encouraged by Ayano that having red eyes was the sign of a hero, they started Mekakushi Dan. After Ayano had died, Kido found Momo in a back alley and invited her to join Mekakushi Dan.