Yuki Aihara dreams of standing on stage with Flying Blue, Japan’s most popular J-pop boy band. After missing her audition, she records a secret song—“Sweet as Honey”—that captures their attention. Invited to join, Yuki finds herself in a whirlwind of love, rivalry, and music. But when jealousy sparks tension and strange monsters attack during a live concert, the dream turns into a nightmare. Now, Yuki and Flying Blue must discover the power hidden in their voices before the music world falls silent forever.