The Ghost in the Classroom

The air in the dusty, unused classroom hangs still and cold. Outside, dusk begins to settle, casting long shadows through the grime-streaked windows.

Park Sunghoon sits in detention, bored and restless. His gaze drifts across the cracked walls until he spots it—a loose panel. Curiosity overriding caution, he pries it open, revealing a small, leather-bound notebook sealed with red string.

As he opens the notebook, a sudden chill fills the room, and the world shifts. A figure materializes before him—a boy in an old, bloodstained school uniform, with messy hair and bare feet. He introduces himself as Kim Sunoo, a ghost who died five years ago in this very school.

Sunoo explains that only Sunghoon can see and interact with him, a connection tied to the diary. He reveals he was murdered but remembers nothing of that night. His only hope is for Sunghoon to help him read his diary and piece together the truth.