Monthly Comic Zero Sum is a josei manga magazine published by Ichijinsha and launched since March 28, 2002. This first issue of the magazine featured cover art by Kazuya Minekura, lead color pages by Yun Kōga, and included the works of writers Sho Sawada, Kaisei Endo, Miyuki Yama, Nobuyuki Ueda, Shoko Tsutsumi, Verno Mikawa, and Erika Kari. Its volumes usually contain over 600 pages and tackles a variety of genres, with well-known manga like Saiyuki Reload, Amatsuki, 07-Ghost, My Next Life as a Villainess, Bibliophile Princess, and Loveless.