Sasa Kenjirou, a former prodigy, was chosen by the extraordinary musician, Isshiki Kyouya, to be his piano instructor. Despite feeling like his own abilities were restricted after hearing Isshiki play at a concert, it was revealed that Isshiki was actually entranced by Sasa's music years prior. Their mutual love for music served as the foundation for their relationship, which flourished splendidly with their profound affection.