A woman named Aya is working in Hokkaido for a doctor, Shuichi, that left Tokyo for personal reasons. Aya is both deaf and mute, and she's secretly in love with Shuichi. After a while, Aya tells him that Shuichi has decided to return to Tokyo to work but promises Aya that he will return soon and then they will get married. Shortly after, he has an accident resulting in memory loss. Time passes, and Aya decides to go to Tokyo to find out what happened.