Summary:
As a young boy, Arima Kosei dominated piano competitions and all musicians knew his name. But after his mother passed away, he had a mental breakdown in the middle of a performance when he found out he wasn't able to hear the sound of the piano. Two years later, Kosei hasn’t touched the piano and can't find any joy in his life. Until one day, he meets an energetic and talented girl who would change his life forever.