Saeki Mashiro

She's the eldest daughter of Kirinomori Shrine and a demonic priestess.

She is a forward-looking, natural girl who looks young but is bright, energetic, and has a relaxed atmosphere, she loves sweets and has a pet named Sunekosuri (Sue), whom she met while exterminating ghosts in the past.
She has a younger sister named Momiji who seems more mature than her.

Her main weapon is a fan.