The title was named after the waka poem that Lady Akashi sent to young lady Akashi, 'I'm longing to hear the song of the first warbler after waiting for her growing for a long time.'
巻名は明石の御方が明石の姫君に送った和歌「年月を松にひかれて経る人に今日鴬の初音聞かせよ」に因む。