Kiss X Sis is a Japanese manga series written and illustrated by Bow Ditama. It began serialization in Kodansha's Bessatsu Young Magazine in December 2005. It was then moved and serialized in Weekly Young Magazine from 2008 to 2009, and was serialized in Monthly Young Magazine from 2009 to 2021. Kodansha collected its chapters in twenty-five tankōbon volumes. It was adapted into an original video animation series, released from December 2008 to April 2015. A 12-episode anime television series by Feel aired from April to June 2010 on AT-X.