Web Animation / Kimetsu no JoJo

Good grief.

"And thus begins Jotaro's bizarre journey on soloing the Demon Hunter verse."

—The short description of the first episode of series

Kimetsu no JoJo is a comedic Crossover Web Animation series by MorcaH, centered around Jotaro Kujo replacing Tanjiro Kamada as the protagonist of Demon Slayer: Kimetsu no Yaiba and speedrunning the story of that series with his Story-Breaker Power of Star Platinum.

While it starts purely as a comedic story with Jotaro being a Showy Invincible Hero, as it goes on, certain enemies prove to be a genuine challenge, countering even Jotaro's awesome ability, and the story begin to truly diverge from the source material following the Mugen Train Arc.

The series consists of 2-4 minute episodes, with each 10 shorts being compiled into longer 30-minute episodes.

Due to the nature of the series, there are many Late Arrival Spoilers for both JoJo's Bizarre Adventure (Part 1 to Part 6) and Demon Slayer: Kimetsu no Yaiba.

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Kimetsu no JoJo provides the example of following tropes:

• Achilles' Heel: The combination of Jotaro's hot-headedness and his heroism. While he's vocally reluctant to be a hero, Jotaro will protect his allies and bystanders from demons, all while being overly confident in his stand ability. Rui uses it against him in Episode 3 to force him into Sadistic Choice between saving Nezuko and Okuyasu from triggered traps or allowing Rui to escape his attack radius. In Episode 7 Gyokko reveals that DIO told them of that and of Jotaro's stand ability, allowing them to plan ahead.
• Adaptational Badass: In his home series, Jotaro had limits on how frequently he could use Star Platinum: The World. Here, while retaining his five-second limit, he's shown to basically spam the ability nonstop at every opportunity.
  • While he only appears for a gag early on, Diavolo shows his King Crimson to be much more powerful that it is in canon, casually sending Jotaro seven days into the future so he doesn't die of boredom during the Final Selection test.
  • Nezuko awakens a stand, Crazy Diamond in particular.
• Adaptational Heroism: Diavolo in this series continues to be trapped in a cycle of endless deaths, dying shortly in each of his appearances. The canon of MorcaH videos showed him eventually accepting his fate and becoming a more easy-going and friendly individual, which is how he's presented here.
  • Downplayed with Yoshikage Kira who's all but said to be a Serial Killer at the start of this series, however, he's forced into heroism by Jotaro and slowly goes through Character Development.
• Adaptational Jerkass: While Jotaro is still a Jerk with a Heart of Gold, he's more impatient and violent towards people, mostly when they annoy him.
  • Nezuko eventually starts taking after her brother.
• Ambiguous Situation: The nature of the stand users' existence in the Demon Slayer world and their connection to the canon world of JoJo's Bizarre Adventure. Jotaro and Kakyoin experience Déjà Vu upon meeting each other, while Okuyasu and Kira don't recognize each other and Jotaro and DIO restore the memories in full, only for Jotaro to receive Laser-Guided Amnesia and forget about DIO or his presence once he's defeated. While at it, while all the stand users retain their appearances, DIO, for some reason, was reincarnated to be Hand Demon.
  • There's even more ambiguity added in Episode 7 where DIO appears in his actual Stardust Crusaders form, now apparently working with Muzan. It's also notable than between his appearances he appears to be the only Jo Jo character to retain his memories in full, never getting any sort of Laser-Guided Amnesia and apparently even knowing something about the whole thing, as in Episode 1 he was surprised that Jotaro retained his ability "in this timeline".
• Beware the Silly Ones: Diavolo is the Butt-Monkey whenever he appears, with people often killing him and his Resurrective Immortality kicking in. However, note that the ones who kill him are people high in the food chain, like Jotaro and Muzan. When Hantengu mistake him for a prostitute and mock him, he delivers a Curb-Stomp Battle, easily dispatching Aizetsu, Kazaku and Seikido in a matter of seconds with his fully restored King Crimson.
• Big Bad Duumvirate: Implied to be Muzan and DIO, as the latter is shown the authority to command the Upper Ranks from his second appearance onward.
• Breaking the Fourth Wall: Occasionally Played for Laughs.
  • A bit less so in Rengoku and Kakyoin's fight against Akaza. Initially, only Rengoku and Akaza have lifebars shown, while Kakyoin is laying paralyzed after the train crash. When Kakyoin points out Akaza can't attack NPCs, the latter waves it off and shows off Kakyoin's own (almost empty) lifebar, making him a legitimate target.
• Comedic Sociopathy: One of the driving forces of comedy in the series, with Jotaro being a Jerk with a Heart of Gold who, most of the time, punches people out with Star Platinum when they annoy him or waste his time. Nezuko eventually begins to take after him during the Muzan Train arc.
• Curb-Stomp Battle: A regular occurence whenever one goes against a stand user. From the very beginning Jotaro effortlessly curb-stomps Giyu, Hand Demon and Swamp Demon. It's also notable that Jotaro also curb-stomps Yoshikage Kira in his initial encounter, despite the other being a stand user as well.
• Death by Adaptation: At the end of the Muzan Train arc, Akaza is unable to escape due to Jotaro's intervention and ends on the receiving side of Off with His Head!, before dying once the sun comes up, having told Jotaro of Muzan's interest in Blue Spider Lily.
• Déjà Vu: Some JoJo characters experience it when crossing paths. Most notably, Jotaro and Kakyoin strike a fast friendship in the Mugen Train arc because of the good feeling they had about each other, and Jotaro calls Battle Tendency!Joseph "an old man" like he does in Stardust Crusaders, to which the latter takes offense.
• Dude Looks Like a Lady: Muzan mistakes Diavolo for a prostitute. The latter isn't offended, rather taking it as a compliment to his cosplaying abilities. Muzan is promptly disgusted at him being a cosplayer.
  • By the time Diavolo encounters Hantengu the comparisons began to irritate him, full-on turning into his Berserk Button when they casually discuss him being a prostitute.
• The Dog Bites Back: Diavolo attempts this in Episode 7 when Jotaro kills him off a few times when Mitsuri mistakes him for a pervert intruding on the hot springs. His stand ability actually puts Jotaro in a vulnerable position, but Jotaro no-sells it because of his sheer durability.
• Dying as Yourself: When Jotaro notes how demons can't possibly understand what it's like to have their family murdered, Akaza recollects pieces of his past and his humanity, with his last act betraying Muzan and revealing his pursuit of Blue Spider Lily that the slayers could use to lure him.
• Establishing Character Moment: In his first appearance Jotaro is being an extreme jerk to his family while on his way to collect coal, but after he leaves, he does so with a fond smile, showing that he does love them.
• Establishing Series Moment: The series starts with a faithful reenactment of Demon Slayer beginning, just with Jotaro replacing Tanjiro. And then Jotaro curb-stomps Giyu in a comical fashion using Star Platinum when the latter decides to be a Jerkass.
• Face Framed in Shadow: For DIO in Episode 8. While it doesn't serve a mystery, since he's already made a few appearances throughout the series, this notes his seriousness and the moment he becomes a Not-So-Harmless Villain, rather than a parody version of the character like Kira and Diavolo.
• Intelligible Unintelligible: Muzan is only shown speaking in Michael Jackson noises whenever he wears a hat. Diavolo, for whatever reason, manages to understand him just fine.
• I Shall Taunt You: Jotaro does that repeatedly against numerous enemies.
  • Rengoku and Kakyoin repeatedly taunt Akaza in their encounter, calling him a "basketball" for the lines on his face.
• Knight of Cerebus: Rui, who manages to prove Jotaro is Not So Invincible After All, bringing actual stakes to the battle and forcing him to think quickly on his feet.
  • DIO. While his early appearances in Episode 1 and Episode 7 are somewhat comedic, DIO's maliciousness is played straight, and in Episode 8 it's revealed that he told the demons about Jotaro's stand ability and implied how to deal with it. From then on, the demons know how to circumvent Star Platinum's Time Stop, mainly by capturing hostages and forcing Sadistic Choices on Jotaro to waste his time stops.
• Morality Pet: Nezuko serves as one to Jotaro and the quickest way to gain his ire is to threaten her, as the Hashiras learn quick.
• Not So Invincible After All: The battle with the Spider Family reveals Jotaro to be this despite his Story-Breaker Power. It's then Discussed by Jotaro and Kakyoin in the Muzan Train arc when they relate on being stand users and Jotaro tells him of his stand ability while wondering if Rengoku's presence is necessary.
  Jotaro: "You'd think I'd be invincible, right? Guess what? The enemy forced me to use timestop to save someone instead of punching them. Thanks to that, I almost died."
• Not-So-Harmless Villain: DIO. While his initial appearance in Episode 1 has him inhabiting Hand Demon, lacking his stand and being helpless against Jotaro, from Episode 7 onward he recovers his Stardust Crusaders body and his stand, easily beating Upper Ranks into submission while working with Muzan and he reveals Jotaro's own stand ability and how to circumvent it.
• Redemption Promotion: It's implied (and shown in MorcaH other series) that prior to Diavolo's Heel Realization and the following Heel–Face Turn he lost access to his stand, and only recovered it briefly before the events of Kimetsu no JoJo, when he was already a better person.
• Resurrective Immortality: Diavolo, following his defeat by Gold Experience Requiem, lives out endless amount of deaths, but it means that every once in a while he ends up close to where he had been several past deaths. Where and when he "spawns" is mostly random. After Jotaro casually one-shots him with Star Platinum after mistaking him for a demon, he spawns back the next day after the Hand Demon battle, but then spawns back in the same location several times back-to-back.
• Showy Invincible Hero: Jotaro Kujo and his Star Platinum, especially early on, casually dismissing demons and the Hashiras who try to make things hard for him.
• Smug Super: Jotaro frequently shows cockiness because of his nigh-invicible stand ability, dismissing demon slayers who don't use stands even after he started to actually be cautious against demons after his encounter with Rui. Kakyoin warns him of dangers of underestimating fellow demon slayers during the Muzan Train arc when Jotaro questions in Rengoku's presence in necessary.
  Kakyoin: "But Jotaro. But apart from our stand powers, we're just normal humans. These pillarmens are actual superhumans. There might be situations where he'd be the one to save us."
  Jotaro: "Ho? And what can these superhumans do to outmatch Star Platinum?"
  Kakyoin: "Well, okay, first off. These guys can run ten times faster than us. If the demon is attacking from far away in the forest, then we can do nothing, really. The only one that can run up to the demon is him. Plus if this train was to explode… The only one who can pick up our asses and run away is the pillarman. So you should really not underestimate these guys."
• Spared by the Adaptation: While he still ends up with Akaza's arm through his guts, Rengoku is promptly healed by Nezuko's Crazy Diamond before he can succumb to the injury. Lampshaded in how after the battle concludes, Rengoku notes that he feels he shouldn't be alive at the moment.
• Story-Breaker Power: Stands as a whole and Star Platinum in particular. While generally stands just trivialize the fights and skip some portions of the story, the Muzan Train arc is where they really break the story with Jotaro's Star Platinum landing critical hits on Akaza and Nezuko's Crazy Diamond healing Rengoku's lethal injury.
• They Killed Kenny Again: Diavolo being stuck in an endless loop of humiliating deaths is milked for all its comedic value. By this point, even he's stopped caring. Except for the one time he does, in Episode 7, when Jotaro kills him off for being an alleged pervert and Diavolo gets pissed off because Jotaro's being an Ungrateful Bastard after their previous encounter.
• Trauma Button: Tamayo accidentally presses one as she offers to adopt Nezuko, pointing out that Jotaro carrying her along could make the enemy use her against him. That briefly triggers Jotaro's PTSD from the events of Stone Ocean where it's exactly what happened with Big Bad exploiting his love for his daughter to kill him. Tamayo is then shown to be Properly Paranoid as the exact same maneuver Pucci attempted in Stone Ocean with Jolyne, Rui attempts with Nezuko during Jotaro's battle against him.
• Wake-Up Call Boss: Rui and the Spider Family as a whole. Despite being confronted by three stand users with Story-Breaker Power, they are able to counter their abilities. Most notable, Rui put a trap that almost killed Okuyasu when he tried to pull him in with the Hand and launched himself out of Star Platinum's radius while putting a web trap that would cut Nezuko apart, forcing Jotaro into a Sadistic Choice akin to that Enrico Pucci forced him into.
  • Subverted with Diavolo. While his stand ability allows him to bypass Star Platinum, he appears to be unable to manifest the actual stand and his physical attacks to Jotaro do nothing.
• Wholesome Crossdresser: As expected, in the Entertainment District Arc Joseph appears and dresses up in his pink dress to infiltrate.