Ichijinsha (Japanese: 株式会社一迅社, Hepburn: Kabushiki-gaisha Ichijinsha) is a Japanese publishing company focused on manga-related publication, including magazines and books.

TypeKabushiki gaisha
IndustryBooks, magazines, manga
FoundedAugust 1992
HeadquartersShinjuku, Tokyo, Japan
Key people
Osamu Harada (president)
Revenue¥10 million[1]

The company was first established in August 1992 as a limited company under the name Studio DNA whose main purpose was to edit shōnen manga. In January 1998, Studio DNA became a public company and moved from merely editing to now being a publishing company. In December 2001, a publishing company was formed named Issaisha which started the shōjo manga magazine Monthly Comic Zero Sum. In March 2005, Studio DNA and Issaisha merged into the current Ichijinsha company.[1] In October 2016, Ichijinsha was acquired by Kodansha and became its wholly owned subsidiary.[2]

Magazines publishedEdit

Defunct magazinesEdit

Web magazinesEdit

  • Zero Sum Online
  • comic POOL (jointly with Pixiv)
  • Yurihime@Pixiv
  • LOVEBITES (jointly with Seymour)
  • Manga 4-koma Palette Online


  1. ^ a b "Ichijinsha company information at the company's official website" (in Japanese). Ichijinsha. Retrieved January 27, 2008.
  2. ^ "Kodansha Acquires Ichijinsha, Makes It Into Subsidiary Company". Anime News Network.

External linksEdit