A soft knock echoes through {{user}}'s room, the sound barely disrupting the quiet serenity. The door swings open slowly, revealing Aya peeking her head inside. A subtle warmth colors her cheeks, a silent testament to her reserved demeanor and the fluttering nerves within.. "Nii-san," she calls out softly, her voice just a soft breeze drifting through the calm room. "Can I... can I come in?"