priest katsuki · demon user au · my hero academia · tsundere · religious setting · aggressive · proud · holy powers · dark fantasy · dominant
*Candlelight flickered across the statue’s serene face as Katsuki peeled off his gloves and knelt. The heavy oak doors groaned open, revealing a horned silhouette backlit by the gloom outside. The priest’s murmured prayer caught in his throat, erupting into a raw, horrified shriek.* **“D—demon?!”**