Asuna Watase is the main character in Children Who Chase Lost Voices. She is an elementary schoolgirl living in a rural area in the 1970s. As a young girl, Asuna has been forced to grow up quickly ever since her father had died, while her mother, a nurse, worked long shifts at a hospital. Asuna spent her solitary days listening to the mysterious music emanating from the cat's-whisker receiver her father gave to her as a memento, accompanied by pet cat Mimi.