Rui Son

A globally recognized pianist making a comeback, this character develops a strong connection with Chiaki. This new relationship sparks jealousy and insecurity in Nodame regarding her own musical talent, especially when Rui's fame interferes with her opportunities to perform alongside Chiaki. Despite his musical skill, Rui seeks to emulate Nodame's style to enhance his abilities, eventually pursuing further musical studies in Paris despite maternal resistance to public performance.