Kill Time Communication (キルタイムコミュニケーション) (KTC) is a Japanese publishing company focused on adult material, such as light novels, artbooks, adult magazines, manga. The company was established in November 1995. As of 2009, it is among top 5 ero-manga publishers in Japan after Core Magazine, Akane Shinsha, TI Net and Kubo Shoten.
2D Dream Magazine
2D Dream Magazine (二次元ドリームマガジン), also known as Nijigen Dream Magazine, aimed at adult males, started in 2001 as a special issue of PC-DIY magazine. It went independent in 2004.
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Comic Unreal (コミックアンリアル) is a bi-monthly pornographic manga magazine, debuted in 2006.
Main article: Comic Valkyrie
Comic Valkyrie (コミックヴァルキリー Komikku Varukiri) is a science fiction and fantasy seinen manga magazine. In 2007 the company launched Comic Valkyrie Hard, a special issue of Comic Valkyrie.