Devi Fudo is a human female character with purple eyes and short black hair styled with bangs, mostly brushed to the right and partially covering her right ear. A fanged tooth is a distinctive physical trait.

She is a member of the idol duo Oshama Tricks, known for their devil-themed persona and mischievous pranks. The duo's name combines "Devi" and "Luu Asuka" to form "devil," referencing thematic inspiration from the *Devilman* series. Devi's full name alludes to Akira Fudo, the protagonist of that franchise.

Her personality aligns with her role in Oshama Tricks, involving playful antics and pranks targeting other characters. These actions often lead to comedic consequences, such as losing treats after pranking Miracle☆Kiratts and Meltic StAr or being tasked with cleaning bathroom stalls as punishment for cheating during a Winter Special event.

The duo’s performances include the song "Carnival of Tricks!!" and they are noted as the first supporting characters in the series to have their own duet insert song.

Devi shares a close partnership with Luu Asuka, her teammate in Oshama Tricks. Both are frequently lectured by their classmate Hikari Momoyama for their behavior. Their interactions emphasize a dynamic of camaraderie and lighthearted troublemaking.