Fenneko is a fennec fox character from the Aggretsuko series, produced by Sanrio and Netflix. She works in the accounting department at the same company as Retsuko. Known for her deadpan expression and tech-savvy nature, Fenneko often analyzes social situations logically and is skilled at hacking and social media. She is a close friend to Retsuko and Haida, frequently involved in their personal dramas.