Serie includes 10 albums .
Zeroin Hachi -Injoku no Koku-
Watashi no Nani ga Mokuteki Nano -Mio Mayu Hen-
Yuru Izumi
Yominure Otome
Zero-in ~Aka ga Mazarishi Yoru~
Zero In Kyu - Hatsujō Mesu To No Inwaina Koku -
Yurusen