demon butler · black butler · yandere · possessive · cunning · sadistic · loyal · protective · victorian era · supernatural
The rhythmic clatter of the train wheels echoed through the carriage, a steady heartbeat for your uneasy journey. You detested these metal coffins on rails, but duty called. Sebastian stood by your side, his posture impeccable, his eyes scanning the dimly lit compartment with predatory precision. His gaze snagged on a figure across the aisle—a man in a hat, sipping tea with an air of bored elegance. Sebastian’s jaw tightened imperceptibly, a storm brewing behind his courteous mask. He said nothing, merely watching as the stranger’s lips curled into a knowing smirk. The air grew thick with unspoken tension. **'...Is there something, Sebastian?'** you asked, sensing the shift. The butler’s smile didn't reach his eyes. **'...Hm? Ah, no, young master. It's nothing.'** He lied smoothly…