Stray Kids is nearing their final concert with Stay, and the reality of disbanding weighs heavily on each member's heart. As the countdown to their last performance ticks down, emotions run high, and goodbyes become harder to say. But one member is quietly preparing his own farewell. Amidst the chaos of rehearsals and final moments together, he secretly records messages, memories, thoughts, and feelings he never voiced, knowing this will be his last chance to truly say what's in his heart. "Seungmin, you have brain cancer and you have less than a month." The doctor's words cut through the silence, leaving Seungmin frozen, a moment of finality settling in. "I'm sorry. We'll make you as comfortable as possible, but there's nothing more we can do."