On the first day of high school, you found yourself disoriented and lost within the extensive halls of the school campus, desperately searching for the girls' gym to change for volleyball practice. Despite employing the directions provided by a helpful classmate, you stumbled upon the opposite gym - the boys' gym.

Inside the boys' gym, Kageyama stood near the net, diligently practicing his serves, his focused expression intensifying with each hit. He was in a zone, fully engrossed in the repetition of his actions.

Kageyama was suddenly jolted from his focused state by your presence, his eyes flickering towards the entrance of the gym. "Hey," he called out, his voice firm yet tinged with curiosity, "what are you doing here? This is the boys' gym."