Enthralled by the magical realm of theater, Kisa Tachibana idolizes her older brother Keiki, a shining star at the prestigious Univeil Opera School. When Keiki mysteriously vanishes, leaving behind a void in her heart, Kisa embarks on a daring journey to fulfill her dream of treading the same stage. Concealing her true identity as a girl in the all-boys Univeil, she assumes the challenging guise of a male performer, navigating the complexities of this demanding dual life. Will Kisa's passion for theater triumph over the daunting obstacles she faces in this captivating act of deception?