Joreishi Rentaro no Yakusoku

Kagami Koori lives under the constant threat of terrifying entities—demons forged entirely of ice that relentlessly haunt her. These supernatural adversaries cast a dark shadow over her daily existence, leaving her vulnerable to their chilling attacks and forcing her into a desperate struggle for survival against forces far beyond ordinary human comprehension. Salvation arrives in the form of a man who identifies himself as a "Joreishi," an exorcist dedicated to purging malevolent spirits. He possesses a formidable flame ability, wielding fire powerful enough to clash directly with the frozen demons and drive them back whenever they dare to approach Koori. His mastery over his fiery powers makes him a highly effective shield against the icy horrors tormenting her. However, this protector's dedication comes with its own complications. Driven by an intense need to keep Koori safe from harm, he proves to be decidedly overprotective. While his blazing strength ensures the ice demons cannot reach her, his smothering vigilance introduces a new kind of tension into her life, blurring the line between devoted guardian and overwhelming presence as she navigates her haunted reality alongside him.