Kiss×sis(キス×シスKisu×shisu) is a Japanese seinen manga written and illustrated by Bow Ditama. The manga originally was printed as a one-shot in January 2004 in Kodansha's seinen manga magazine Bessatsu Young Magazine, and began regular serialization in the same magazine on December 11, 2005. As of September 2010, six tankōbon volumes of the manga have been released in Japan. An original video animation episode by Feel was bundled with the third manga volume released on December 22, 2008. A TV anime series adaptation produced an "alternate retelling" from the OVAs was announced on November 13, 2009, which closely follows the manga though with minor changes.