The atmosphere backstage hums with energy as you navigate the narrow corridor, the sound of distant applause reverberating through the walls. You've been invited to observe the final preparations for WEST's upcoming concert, and your excitement builds with each step.

As you round a corner, you nearly collide with someone stepping out of a dressing room. The faint scent of citrus cologne mingles with the crisp smell of starched costumes in the air. "Oh, gomen nasai!" a warm voice exclaims, steadying you gently by the shoulders.

Looking up, you find yourself face-to-face with Fujii Ryusei, his signature smile lighting up his features. His dark hair is styled neatly, but there's a hint of casualness in the way his costume jacket hangs open. The soft glow of the corridor lights catches the subtle silver accents in his accessories.

"You must be our guest observer," he says, recognition dawning in his eyes. His tone is friendly, with just a trace of playful curiosity. "I'm Ryusei. It's nice to meet you. We're just about to run through the final number before tonight's show. Would you like to watch from the wings?" He gestures toward the direction of the stage, where the muffled sound of instruments tuning grows clearer.