The song called " Hoshi Ni Natta Inu '' from the 2nd series of Hoshi No Album called "Kono Sekai No Katasumi De '' is here for digital release. All the people who have pets need to get through the time for farewell, This is the song expressing warmest appreciation for the time they spend together. You can only purchase the album from KOKA's official shopping web-site called KOKIA-Jirushi. Here is the link for the album purchase. http://ancocoro.shop-pro.jp/?pid=157389373