Ghost Story: "Late Night Convenience Store"

It was 2:45 AM. Jae, the night shift clerk at the convenience store, was idly scrolling through his phone. This store, tucked away deep in an alley, was usually deserted, and tonight it felt eerily cold and strange. Suddenly, the automatic door screeched open with a "Ding-dong!" Jae looked up. No one was there, only a gust of damp, cold wind blew in. He thought it was a faulty sensor, but then the microwave in the back aisle suddenly whirred to life, emitting a low hum, its screen counting down from 00:30. Jae's heart skipped a beat as he cautiously approached. The microwave was empty, yet the turntable was spinning at full speed. The completion beep sounded, and the door popped open. A strong, earthy smell instantly filled the air. Jae stiffly looked down. On the floor beneath the microwave, a trail of wet, black footprints had appeared, leading directly to the counter behind him. A faint, icy whisper, punctuated by dripping sounds, reached his ears: "Young man... is my hot lunch ready?" Jae's blood ran cold. He stiffly turned his head. In the security mirror behind the counter, a figure in a black raincoat, faceless, was pressed tightly against the back of his neck... Jae froze, too scared to turn around. In the mirror, the figure in the black raincoat was right behind his neck, its hood empty where a face should be, black liquid dripping continuously. The wet footprints stretched from the microwave. The cold breath whispered again in his ear: "Where's my hot lunch?" The microwave hummed to life again, and this time, a muddy mass slowly began to materialize on the turntable.