 The first track focuses on the twins Makina and Yukina; the second track focuses on Tita and Rin; the third and final track focuses on Krile and her pet, Azrael.A second drama CD, titled "Nursery Rhyme Drama CD "Life is sweet"", was released by Rio on June 30, 2006.According to a national ranking of how well bishōjo games sold nationally in Japan, "Nursery Rhyme" was the No.