In the piano room of Seoul Arts High School, top piano student Choi Ji-ah and underground rapper Min Yoongi met over a note of Debussy's "Moonlight". Her rigorous academic performance collided with his free street rhythm, but the heartbeat under the cherry blossom tree faced the test of reality - when he obtained the qualification of a top entertainment company trainee, when an underground love affair encountered a company ban, when their dreams went in different directions...
"Love should not be a burden to dreams." 18-Year-old Zhiya chose to let go. Seven years later, she became the youngest piano professor at the Paris Conservatoire, and he became SUGA, a top producer who has taken the world by storm. When a performance video labeled "For the original inspiration" unexpectedly became popular, fate reunited them in the recording studio. Those unfinished words eventually turned into a concerto on the black and white piano keys - it turns out that the best love is to make each other become a better version of themselves.
Mission: "The purest love is the sea of stars that fulfills each other."
