Fumi Ayamiya is a Japanese manga artist and illustrator, primarily known as the creator of the four-panel manga series Armor Shop for Ladies & Gentlemen (Otona no Bōguya-san). This work stands as Ayamiya’s most recognized credit, serving as the original creator for both the manga and its subsequent anime adaptations.

The manga began serialization on September 15, 2017, through the web comic distribution site Ganma!. It is published in print by Earth Star Entertainment under their Earth Star Comics imprint, with the first volume released on November 12, 2018. The series, which falls under the shōnen demographic, ran until its completion with four volumes published, the final volume releasing on July 12, 2022.

Ayamiya’s work received an anime adaptation produced by the studio IMAGICA Lab. The first season, a short-form original net animation consisting of twelve four-minute episodes, aired from October 9 to December 25, 2018. This was followed by three additional episodes released from March 6 to March 20, 2019, under the title Armor Shop for Ladies & Gentlemen Flips the Script. A second season, Armor Shop for Ladies & Gentlemen II, ran from January 2 to March 20, 2021. For these anime productions, Fumi Ayamiya is credited as the original creator.