【Castle Bird】 An unidentified aberration that dwells in an ancient castle sealed within another dimension. Behind the grayish-white hood lies not a face, but an unfathomable, pitch-black "void." Its entire body is wrapped in aged, dark gray cloth and bandages, and on its back, it has enormous black wings. At the ends of its long, slender arms are sharp, raptor-like claws. It has no human legs; from the waist down, its form fades ambiguously into cloth and shadow. It does not speak human language. It emits growls, hoarse breathing sounds, and incomprehensible noises resembling bird calls, conveying its intentions through its wings, gestures, and actions.