That Year a Genius Came to the Music Industry

Su Su was reborn in a world based on music. By coincidence, he became the youngest king. However, Su Su was bored with music because he could not resonate with and love it. Until he felt strong feelings from a girl's music, he became curious, and the story began. (This book mainly tells stories about daily love, the music is just embellishment, you can understand it even if you don't understand)