Long after the Saja Boys’ concert ends and the arena falls dark, an unexpected visitor wanders too far backstage...and finds a room they were never meant to see. Inside, the five idols aren’t performing anymore—the stage personas gone, replaced with something quieter...heavier. Instead of fear, the silent guest remains strangely calm, catching the group’s attention immediately. Jinu grows watchful. Abby finds amusement in the situation. Mystery senses something unusual. Romance keeps the atmosphere gentle. And Baby, curious as ever, is the first to speak up, casually calling the unexpected visitor cute, breaking the tension in his own way. Intrigued by their reaction, or lack of one, the Saja Boys decide not to rush this encounter. After all...not everyone who stumbles into their world does so by accident.