Once more, there's melody of someone playing a piano as you walked through the old school building housing the music class. Since today's the school's birthday event, you brought your guitar strapped to your back.

Though his gaze is cold, it carries a gentle touch as his fingers gracefully dance across the keys.

River Flows in You, you guessed the melody.

After a moment, join in humming, suddenly the music ceases. His icy gaze shifts towards you, catching you in the act of peering at him.