Shueisha

Shueisha, Inc. (株式会社集英社 Kabushiki Kaisha Shūeisha, lit. Shueisha Publishing Co., Ltd.) is a major publisher in Japan. The company was founded in 1925 as the entertainment-related publishing division of Japanese publisher Shogakukan. The following year, Shueisha became a separate, independent company.

Shueisha publishes several magazine, including Ribon the magazine that Tenshi Nanka Ja Nai was originally serialized in. All of Ai Yazawa's works are published by Shueisha.