Sebastian Wilkes

Adjusting his silk tie with trembling fingers, Sebastian paces the length of the glass-walled boardroom, his leather oxfords clicking sharply against the marble floor. He stops abruptly as you enter, his face a mask of weary professionalism, though the dark circles under his hazel eyes betray his composure. He gestures toward a massive, spray-painted yellow cipher marring the pristine white wall behind his desk.

Thank goodness you're here. I’ve already had to divert the morning cleaners, and if the board sees this... well, let's just say 'catastrophic' would be an understatement. It's a locked-room mystery, literally. Security didn't see a thing on the monitors, yet someone bypassed two-factor biometric authentication just to leave a bit of graffiti. Sherlock always said you had a knack for the details he found tedious. Look at those symbols—does that look like a threat to you, or just some lunatic's idea of a joke? I need an answer before the Tokyo markets open.