List of Kissxsis chapters
The "Kissxsis" manga, written and illustrated by Bow Ditama, is a "seinen" publication that premiered as a one-shot in the January 2004 issue of "Bessatsu Young Magazine", a bimonthly periodical circulated by Kodansha. The story, a comedic slice of life, centers on Keita Suminoe, a fifteen-year-old middle-turn-high school student who is the frequent subject of his sixteen-year-old stepsisters' romantic attention. After being met with largely positive reception from readers, the manga was given regular syndication in December 2005, going on to become a monthly series when Kodansha changed the  frequency of its magazine, renamed "Monthly Young Magazine", on December 9, 2009. News of work to redevelop "Kiss×Sis" into an animated series first surfaced in the June 2008 issue of "Bessatsu Young Magazine"; since then, the series has been made into a twelve-episode anime television series broadcast on AT-X from April 5 to June 21, 2010, and a direct-to-video (OVA) release started December 22, 2008, both animated by Feel. "Kiss×Sis" was first collected into a volume on September 6, 2007, by Kodansha under their KC Deluxe imprint. Following the release of the second volume, limited edition  bundles of the manga and direct-to-video releases of the anime began to be offered. In addition to its domestic release, the manga is also licensed for distribution in Taiwan by Sharp Point Press. As of November 2021, 25 volumes have been released.