A chain of events caused by different people result in the death of two-year-old Kayama Shota. The child’s father, Satoshi, is a journalist who tries to find out who killed his son.
Sasaki Shinichi watches his childhood friend Tanaka Yukino receive the death sentence in court. Shinichi’s intuition tells him that Yukino is not the real criminal. Wanting to save Yukino, he goes to meet the different people who know her, but hears about her bitter past wherever he goes.
Four years ago, Hagio Sae she lost the most important thing for a violinist – her hearing. As a result she closed off her inner self from the outside world. One day she meets Kai Yuuki who’s studying social welfare psychology.