Riya Narukawa

Riya Narukawa is a high school freshman with amazing talents for the violin but also suffers from mental issues. Riya has a multiple personality disorder making him seem perfectly fine and good one day whereas another day he can change into the complete opposite. There are two Riyas. He calls his other self his brother and thinks that his brother is inside of his body forcing Riya to play the violin. The two Riyas are also known to be called Black and White. The multiple personalities give Riya a lot of complication and distress but when Riya meets Atsushi it seems that his life begins to change. Source: Mangafox