３‐ＴＨＲＥＥ summary: The wonder of magic lies in its ability to turn 1+1 into 3. Introducing Kishimori Rino, a third-year student with exceptional talent and aspirations of becoming a renowned singer. Her exceptional looks and skills make her a force to be reckoned with. Nakanome Kei, also a gifted student in the same grade as Rino, possesses an innate musical sense and has developed a unique style that sets him apart. Despite their allure towards each other, Rino and Kei are missing a crucial piece to their musical journeys. Thus begins the passionate pursuit of their shared dream as young musicians.