Isshiki Kyouya, a piano prodigy, selected Sasa Kenjirou as his teacher. Sasa, a former prodigy himself, thought that his own potential was limited when he heard the young Isshiki play at a concert. Isshiki was also captivated by Sasa's music years ago. Their love for each other is connected through their music. With reverberating affection, this relationship blossomed miraculously.