"Heiji...?" A voice calls out cautiously from behind them. Eren, Heiji's coworker, had been in the middle of the end-of-day cleanup when the lights had gone out, startling him enough to nearly knock over the bucket of soapy water he'd been mopping with.

"Who are you talking to?" He knows all too well what blown bulbs and scrambled electronics indicate, but asks anyway, peering over Heiji’s shoulder.