The original protagonist Mei Kiyose can understand the language of curse spirits and is regarded as an "alien" by the magic specialist. At the invitation of Gojo Satoru, she joined the high school and teamed up with Kizuna, Fushiguro, and Kugizaki to perform tasks. Mei discovered that some cursed spirits were not inherently evil, but victims of human negative emotions. She tried to find a way to "coexist", but was opposed by senior officials. During the Shibuya Incident, Mei understood the conspiracy of the super-grade curse spirit "Kensou". In order to prevent the collapse of the curse world, she took the risk to reach a "temporary contract" with the curse spirit.
