Rikizo is a Japanese manga artist and illustrator whose professional career began in 2016. The creator is primarily known for illustrating the manga adaptation of the light novel series The World's Strongest Rearguard: Labyrinth Country's Novice Seeker.

Rikizo works under the pen name Rikizo, which is written in Japanese as 力蔵. The birth year on record is 1989, though further biographical details such as exact date of birth or location are not specified in available sources.

The most significant and consistently documented work by Rikizo is the manga adaptation of The World's Strongest Rearguard, a fantasy isekai series originally written by Toowa with character designs by Huuka Kazabana. The original light novel series began as a web novel on the Shōsetsuka ni Narō platform in April 2017, and Fujimi Shobo started publishing it as a light novel under the Kadokawa Books imprint in November 2017. The manga adaptation illustrated by Rikizo began serialization on Kadokawa Corporation's ComicWalker service in March 2018. As of February 2025, nine compiled volumes of the manga had been released. The English language version of the manga is published by Yen Press, with translations provided by Noboru Akimoto and lettering by Chana Conley.

In this adaptation, Rikizo holds the role of manga artist or mangaka, while Toowa is credited as the original creator of the story and Huuka Kazabana as the original character designer. An anime television series adaptation based on the original light novel has been announced, though details regarding Rikizo's direct involvement in the anime production are not documented in the available sources.

No other original manga works or notable creative projects solely authored by Rikizo are documented in the available information. The creator's artistic identity and recurring themes remain defined primarily by the work on The World's Strongest Rearguard adaptation.