Seimu Yoshizaki

is a Japanese manga artist. She made her debut with Aka–chan to Tenshi in 1989. She is best known for Kingyo Used Books (2004–2020), serialized in Shogakukan's Monthly Ikki magazine.

Yoshizaki has illustrated manga written by Takashi Nagasaki, who also works under the pen names Toshusai Garaku and Richard Woo, several times since Telekinesis Yamate TV Kinema Shitsu (2004–2007). They first reunited for the female detective manga Deka Girl, which ran in Kodansha's Kiss Plus from 2008 to August 2011. The two then serialized the science fiction detective series Usagi Tantei Monogatari (2012–2013) for Kodansha's Kiss. Yoshizaki and Woo created Abracadabra: Ryōki Hanzai Tokusōshitsu in Big Comic Original Zōkan from 2014 to 2020. It won the first Saito Takao Award in 2018. In 2022, the two began the suspense manga Minzoku Gakusha Akasaka Yaichirō no Jiken-bo in the October issue of Kodansha's Monthly Afternoon, which was released on August 24, 2022.

Selected works (1994–1996) (2000–2002, serialized in OURs Girl and OURs Lite, Shōnen Gahōsha) (2004–2020, originally serialized in Monthly Ikki, Shogakukan) (2004–2007, written by Toshusai Garaku, serialized in Big Comic Spirits, Shogakukan) (2008–2010, serialized in Big Comic Original, Shogakukan) (2008–2011, written by Takashi Nagasaki, serialized in Kiss Plus, Kodansha) (2012–2013, written by Takashi Nagasaki, serialized in Kiss, Kodansha) (2014–2020, written by Richard Woo) (2022–2023, written by Richard Woo, serialized in Monthly Afternoon, Kodansha)