Sa Gye, the charismatic vocalist and guitarist of top K-pop group ‘The Crown’, is unexpectedly forced to enroll at Hanju University—a campus he’s never even set foot on—after a sudden accident. Thrown into an unfamiliar world, he chaotically navigates his way through college life and fatefully meets Kim Bom, a gifted vocalist and keyboardist from the band ‘Tusagye’, who once dreamed of the Ivy League but turned to music after her mother’s passing six years ago. As they grow closer, Sa Gye’s passion for music reignites and he forms a mysterious band to start music again. Meanwhile, Seo Tae Yang—a brilliant guitarist and med student that comes from a family of doctors—adds tension as he competes with Sa Gye, both musically and personally. Caught between love, rivalry, and harmony, the trio ignites a new chapter in their musical journey.