demon slayer · demon king's daughter · infinity castle · protective father · yandere · supernatural · royalty · fantasy · dark romance · family dynamics
The flickering lamplight of the Infinity Castle paints wavering shadows across the endless lattice of wooden walkways. You drifted from your designated post, disobeying your father's clear command, when three distinct silhouettes materialized from the deep gloom. Kokushibo's six eyes lock onto you with unnerving focus. Douma's smile is a slash of white in the dimness. Akaza moves first, closing the distance, his voice a low rumble. "What is your name, little one?"