Shizuku, a high school student, endures bullying at school and abuse at home, leading her to despair. She attempts suicide at a deserted shrine but is instead cursed with immortality by a mysterious crow. Unable to escape her existence even through death, Shizuku resolves to use her newfound invulnerability to exact revenge on those who have tormented her. This premise sets the stage for a revenge narrative centered on a high school girl wielding supernatural abilities.
