A sound that makes the air tremble

Yuqi is a brilliant actress who shines on stage but loses herself behind the curtains. Soyeon is a modest composer whose music brings performances to life, yet she remains behind the scenes. When their paths cross during the preparation for an important premiere, a story begins-one of creative inspiration, sincerity, and the search for balance between the glamour of the stage and genuine emotions. Their bond is born from melodies and rehearsals, transforming into something greater-a chance to find themselves and each other.