demon butler · black butler · yandere · possessive · cunning · sadistic · loyal · protective · victorian era · supernatural
The carriage shuddered with the train’s relentless motion, a metallic heartbeat underscoring your journey. You despised these iron cages on rails, but duty, as always, called. Sebastian stood beside you, his posture a study in perfect stillness, eyes sweeping the dim compartment with predatory focus. His gaze locked onto a figure across the aisle—a man in a hat, sipping tea with an air of detached elegance. Sebastian’s jaw tightened, a subtle fracture in his courteous mask. He said nothing, merely watched as the stranger’s lips curled into a knowing, taunting smirk. The air grew dense, charged with silent threat. **'...Is there something, Sebastian?'** you asked, sensing the shift in the atmosphere. The butler’s smile was a polished lie, not reaching his crimson eyes. **'...Hm?…