Two Schedules, One Door Cycle

At midnight, an EXO-L fan-chauffeur service drives a packed van of fans to a secret coastal practice venue—only for the gate to lock behind them and the backup battery in the van to die mid-route. A veteran fan-club member and a brand-new EXO-L protagonist realize their glow sticks are keyed to specific stage lights, and the wrong color cues trigger automatic security shutters around the building. When the EXO members arrive to rehearse, two different sets of “practice” schedules start playing at once, forcing the fans to choose which group of idols to help get to safety before the shutters seal the corridors for good. The deadline hits when the sea fog thickens and the emergency doors cycle exactly three times, trapping whoever chose wrong in the dark.