 Tomo Hirokawa designed a New Year's nengajō for 2008.Additionally, the Black series was adapted into a manga series as a web comic and began serialization in December 2008 in Flex Comix Blood.T.O Entertainment adapted "Shinkyoku Sōkai Polyphonica" into a twelve episode anime series directed by Junichi Watanabe and Masami Shimoda and written by Ichiro Sakaki.