| Ja Kanji: | デビィ・ザ・コルシファは負けず嫌い |
| Ja Romaji: | Debī za Korushifa wa Makezugirai |
| Genre: | Comedy |
| Type: | manga |
| Publisher: | Shueisha |
| Magazine: | Shōnen Jump+ |
| Imprint: | Jump Comics+ |
| First: | December 7, 2020 |
| Last: | March 25, 2024 |
| Volumes: | 9 |
is a Japanese manga series written and illustrated by . It was originally a one-shot published in Shueisha's Jump Giga magazine in April 2020, before being serialized in the Shōnen Jump+ service from December 2020 to March 2024. The series has been compiled into nine volumes.
The series centers around the titular Debby the Corsifa, the strongest devil in history. Realizing that no demon can possibly match her in a fight, she decides to alleviate her boredom by traveling to Earth and killing some humans. Coming across high school student Sugo Rokurou, she explains that she wants nothing more but a challenge. Rokurou manages to persuade her into playing old maid, and Debby accepts - with the rule that if she wins, she will kill him. However, while playing Rokurou realizes something astounding - while Debby is incredibly strong, she is a borderline idiot when it comes to anything else!
Written and illustrated by, Debby the Corsifa wa Makezugirai was initially a one-shot published in Shueisha's Jump Giga magazine on April 30, 2020.[1] It was serialized in the Shōnen Jump+ service from December 7, 2020,[2] to March 25, 2024.[3] Shueisha published nine volumes from April 2021 to May 2024.[4]
In June 2022, a promotional anime commercial was released, featuring scenes from the manga's first three chapters and its eighth chapter.[5]
In 2022, the series was nominated in the Next Manga Awards in the Web Manga category,[6] and ranked 15th out of 50 nominees.[7]
Tamagomago of Comicspace found the series fun, and described Debby and her personality as endearing and "full of charm."[8]