Once we meet somebody, we can no longer be alone.
Kousei Arima was a genius pianist until his mother’s sudden death took away his ability to play. Ever since then, each day was dull for Kousei. One day, he meets one violinist by the name of Kaori Miyazono. This care-free, independent, and sometimes short-tempered girl had an eccentric playing style that immediately fascinated Kousei. His once monotonous life was about to change forever.