Synopsis: Niemiko

Yagami Sumika, a high school girl born into a lineage of shrine maidens, possesses the ability to perceive "strange things" that others cannot. She has always faced comparisons to her gifted younger sister, leading her to grapple with her own sense of identity. During the family ritual of "praying under the full moon," however, a sealed demon is released, thrusting her into a perilous predicament! At that moment, a mysterious demon appears, referring to the troubled Sumika as a "sacrificial maiden."