Satou has long, light brown hair with bangs. Her eyes are blue.
When she's working on her manuscript, she wears her hair up in a loose bun. She wears long sleeves under a floral dress. In the anime, her dress is pink with no floral design, and her sleeves are light green.
Satou draws a last-minute replacement manuscript for Emerald, starting it just three days before it needs to go to print. Ritsu Onodera and Masamune Takano help her complete the manuscript on the last day, which is Ritsu's first day at his new job. Takano wants one of the frames redrawn to be more dramatic, and to assist her with getting the dramatic angle right, he kisses Ritsu for her reference. She is able to finish the manuscript on time.
- Not to be confused with Nanako Saitou, another mangaka with Emerald.