Sō Indo is the original creator of the manga series The Knight Cartoonist and Her Orc Editor. For this work, Indo is credited with the original story concept, while the illustrations were handled by artist Takafumi Satō. This distinction establishes Indo as a writer and creator of manga concepts rather than an artist who draws their own series.

The Knight Cartoonist and Her Orc Editor, known in Japanese as Orc Henshuu to Onna Kishi Mangaka-san, was Indo's primary published work to receive an English release. The manga was serialized in Kodansha's Shounen Magazine Edge, running from November 15, 2017 to March 15, 2019. The series was collected into three volumes, with the English digital editions published by Kodansha USA from August 13, 2019 to October 8, 2019. The story follows Yeld, an orc who leaves his dark fantasy world to become a manga editor in Tokyo, and Annelise, a knight who aspires to be a manga artist. The supporting cast includes a tentacle monster summoned as an art assistant and a slime girl who provides unusual manga tools.

The series is described as a comedic take on the manga industry, blending fantasy elements with a workplace setting. It falls into the reverse isekai genre, where fantasy characters come to the modern world, and presents itself as a humorous documentary about manga creation. The intended audience is rated M for mature readers.

Information about Sō Indo beyond this single work is not available in published records. The creator does not appear to have other manga series credited to their name in English-language sources, and no biographical details such as birth date, nationality, or prior professional background are documented in the available publication data.