History Manga / TheGreatJahyWillNotBeDefeated

* SpiritualSuccessor: To ''Manga/SquidGirl'', another manga about a diminutive wannabe conqueror roped into working for[=/=]living with two sisters; one a violent, caustic brute who busts the protagonist's (metaphorical) balls and the other a reserved, matronly woman who can nonetheless be terrifying when she's mad. Both anime adaptations also have the same lead writer, Creator/MichikoYokote.

* ExcitedShowTitle: The original title (''Jahī-sama wa Kujikenai!''), the scanlation title (''Jahy-sama Won't Be Discouraged!'') and the official English title (''The Great Jahy Will Not Be Defeated!'') all have an exclamation mark.

* ActorAllusion: Episode 3 ends with a parody of ''LightNovel/BodaciousSpacePirates'', which starred three of ''Great Jahy'''s four current voice actresses (Creator/KanaHanazawa, Creator/YokoHikasa, and Creator/AiKayano). Oddly, while Hanazawa has a similar position as the main character's second-in-command, Creator/MikakoKomatsu--who voiced the lead in ''Bodacious Space Pirates''--doesn't debut until the next episode, missing out on an Actor Allusion of her own.

* SpiritualSuccessor: To ''Manga/SquidGirl'', another manga about a diminutive wannabe conqueror roped into working for[=/=]living with two sisters; one a violent, caustic brute who busts the protagonist's (metaphorical) balls and the other a reserved, matronly woman who can nonetheless be terrifying when she's mad. Both anime adaptations also have the same lead writer, Michiko Yokote.

''The Great Jahy Will Not Be Defeated!'' (ジャヒー様はくじけない！, ''Jahī-sama wa Kujikenai!'', "Jahy-sama Won't Be Discouraged!") is a comedy manga written and illustrated by Wakame Konbu (also known for ''Manga/BreastsAreMyFavoriteThingsInTheWorld'' and ''Manga/TheMaidIHiredRecentlyIsMysterious''), which started publication in Creator/SquareEnix's ''Monthly Gangan Joker'' in 2017. Its English release is also handled by Square Enix, starting July 2021.

''The Great Jahy Will Not Be Defeated!'' (ジャヒー様はくじけない！, ''Jahī-sama wa Kujikenai!'', "Jahy-sama Won't Be Discouraged!") is a comedy manga written and illustrated by Wakame Konbu (also known for ''Manga/BreastsAreMyFavoriteThingsInTheWorld'' and ''The Maid I Hired Recently Is Mysterious''), which started publication in Creator/SquareEnix's ''Monthly Gangan Joker'' in 2017. Its English release is also handled by Square Enix, starting July 2021.

* CosmicKeystone: In the opening, the structural integrity of the demon world depends on Jahy's giant mana crystal. When the magical girl destroys it, the entire world collapses into nothingness.

The series also received a 2-cour anime adaptation directed by Mirai Minato for Creator/SilverLink, which aired on Creator/TVAsahi [[note]] and its Osaka affiliate, [[Creator/AsahiBroadcastingCorporation ABC]] [[/note]] from August 1, 2021 to December 19, 2021. It is available to stream on Creator/Crunchyroll subbed in most countries [[https://beta.crunchyroll.com/series/GNVHKNWXW/the-great-jahy-will-not-be-defeated here]].

The series also received a 2-cour anime adaptation directed by Mirai Minato for Creator/SilverLink, which aired on Creator/TVAsahi [[note]] and its Osaka affiliate, [[Creator/AsahiBroadcastingCorporation ABC]] [[/note]] from August 1, 2021 to December 19, 2021.

* AdultFear: While Jahy is an adult herself([[{{Womanchild}} somewhat]]), this nonetheless is played straight for Ryou when the magical girl attempts to steal Jahy's mana crystal, immediately running in and confronting her once she hears Jahy's screaming. From the landlady's perspective, a strange woman broke into her tenant's apartment and is raving like a lunatic about being a magical girl while attempting to steal something from her. It's little wonder that she immediately called the cops.

''The Great Jahy Will Not Be Defeated!'' (ジャヒー様はくじけない！, ''Jahī-sama wa Kujikenai!'', "Jahy-sama Won't Be Discouraged!") is a comedy manga written and illustrated by Wakame Konbu (also known for ''BreastsAreMyFavoriteThingsInTheWorld'' and ''The Maid I Hired Recently Is Mysterious''), which started publication in Creator/SquareEnix's ''Monthly Gangan Joker'' in 2017. Its English release is also handled by Square Enix, starting July 2021.

''The Great Jahy Will Not Be Defeated!'' (ジャヒー様はくじけない！, ''Jahī-sama wa Kujikenai!'', "Jahy-sama Won't Be Discouraged!") is a comedy manga written and illustrated by Wakame Konbu, which started publication in ''Monthly Gangan Joker'' in 2017. Its English release is handled by Square Enix, starting July 2021. It also received a 2-cour anime adaptation directed by Mirai Minato for Creator/SilverLink, which started airing on August 1, 2021.

* ALighterShadeOfBlack: All of the demons are near-cases of {{Card Carrying Villain}}s, since while they don't espouse being evil they do revel in being cruel and monstrous, but all of them truly cared about the demon race as a whole, and mostly collect mystic gems because they miss their home in the demon realm. It helps paint them in a better and more sympathetic light compared to the Being of Light, since while its agents are people who genuinely do good and fall under likable {{Hero Antagonist}}s, the being itself is very clearly a horrific KnightTemplar, adamant about effectively genociding the entire demon race, [[VanHelsingHateCrimes even those who either never did any bad or have reformed]], with no reason given outside the implication it just hates demons.

''The Great Jahy Will Not Be Defeated!'' (ジャヒー様はくじけない！, ''Jahī-sama wa Kujikenai!'', "Jahy-sama Won't Be Discouraged!") is a comedy manga written and illustrated by Wakame Konbu, starting publication in 2017. Its English release is handled by Square Enix, starting July 2021. It also received a 2-cour anime adaptation directed by Mirai Minato for Creator/SilverLink, which started airing on August 1, 2021.

* FoodPorn: The chapter where the Owner has Jahy and Kyoko try out different cooked meats, including fish, ginger pork, and steak, provides both types of food porn, with Kyoko giving impressively elaborate and enthusiastic descriptions of them as if she was a high-class food connoisseur, while Jahy experiences increasing levels of bliss at being able to eat good meat, with the steak outright inducing a {{fanservice}}y ''Manga/FoodWars''-style [[OrgasmicallyDelicious foodgasm]].

* TheJinx: The magical demon gems have this effect on any humans that possess them, with even a small one making the owner suffer bad luck like frequent tripping or animals attacking them, while a massive concentration of them being held under the "ownership" of a human will turn the place they keep it into a decrepit EldritchLocation constantly trying to kill them with bad fortune. The Magical Girl, Kyouko is only able to handle owning so many of them because of being incredibly tough through a combination of magical girl powers and natural sturdiness gained from being BornUnlucky even before she took up her role fighting demons and gathering gems.

* WrestlerInAllOfUs: The OP features shots of Jahy and the landlady putting each other in submission holds.