Demon Slayer is full of intense battles, deep emotions, and sad stories, but it also has many funny moments. From Tanjiro’s kind and innocent nature to Zenitsu’s dramatic reactions, the show mixes serious themes with humor. Here are some of the funniest moments in Demon Slayer that show it’s not just about fighting demons, it can make us laugh too!
10. Zenitsu’s Shamisen Performance (Episode 36 – “Layered Memories”)
While pretending to be “Zenko” in the Entertainment District, Zenitsu is asked to play the shamisen, a traditional Japanese instrument. Instead of playing gently, he strums it wildly at high speed, making a loud and unpleasant noise. Everyone in the room is shocked by his performance.
This moment is funny among fans because Zenitsu doesn’t realize how ridiculous he looks. He puts too much energy into something that should be simple, turning it into a chaotic and hilarious scene.
9. Giyu Tying Up Inosuke (Episode 22 – “Master of the Mansion”)
After the battle on Mount Natagumo, Inosuke tries to fight Giyu Tomioka, not realizing how much stronger Giyu is. Without even trying, he quickly defeats Inosuke and ties him up, leaving him hanging helplessly. Inosuke, who is usually loud and full of energy, is completely shocked and silent.
Giyu takes down Inosuke so easily. It happens in the background while others are talking, making it even funnier. Seeing the wild and fearless Inosuke suddenly powerless is both surprising and hilarious.
8. Inosuke and Tanjiro Training Under the Waterfall (Episode 30 – “Hashira Meeting”)
During the Hashira Training Arc, Tanjiro, Zenitsu, and Inosuke have to sit under a freezing waterfall as part of their training. Tanjiro stays calm and focused, meditating peacefully. Inosuke, however, screams and moves around wildly, making a big scene. Zenitsu steps under the waterfall, but the moment he feels the cold, he panics and runs away, refusing to continue. He whines loudly and acts overly dramatic, making Tanjiro’s serious attitude seem even funnier.
This moment is hilarious because of how differently each character handles the situation. Tanjiro treats the training like a true warrior, Inosuke turns it into a wild mess, and Zenitsu doesn’t even try. His dramatic screams and instant retreat make the scene one of the funniest moments in Demon Slayer.
7. Uzui Tengen and Inosuke’s Hilarious “God” Introduction (Episode 34 – “Tonight”)
During the Entertainment District Arc, Tengen Uzui introduces himself to Tanjiro, Inosuke, and Zenitsu in a flashy way, calling himself the “God of Festivals.” Tanjiro is impressed, while Zenitsu looks confused. Inosuke, not wanting to lose, quickly declares himself the “God of the Mountains” and starts showing off his muscles. Uzui and Inosuke then compete to see who is more impressive, while Tanjiro and Zenitsu watch in confusion.
Both Uzui and Inosuke love to show off and refuse to back down. What should have been a simple introduction turns into a silly contest, and Tanjiro and Zenitsu’s reactions make it even funnier.
6. Iguro Getting Jealous of Tanjiro (Episode 34 – “Tonight”)
During the Hashira Training Arc, Tanjiro talks to Mitsuri Kanroji, the Love Hashira, in a friendly and polite way. Mitsuri, who is always cheerful and kind, encourages Tanjiro and treats him warmly. However, Obanai Iguro, the Serpent Hashira, secretly likes Mitsuri and gets jealous when he sees her talking to Tanjiro. He stares angrily at Tanjiro from a distance, upset that Mitsuri is giving him attention. While Mitsuri is just being friendly, Iguro’s jealousy makes the situation even funnier.
Iguro, who is usually serious and scary, suddenly acts like a jealous rival over something small. His angry looks and protective behavior make it clear that he doesn’t want anyone near Mitsuri. The best part is that Tanjiro has no idea what’s going on, which makes the scene even more amusing.
5. Inosuke’s Sword Customization
When Inosuke gets new swords, he immediately grabs a rock and starts breaking the blades, shocking the swordsmith. The swordsmith gets extremely angry, but Inosuke doesn’t care at all. He thinks he is making the swords better.
Inosuke treats something valuable like it’s nothing. The swordsmith’s loud and dramatic reaction makes it even funnier, making this one of the most memorable funny scenes in the series.
4. Tanjiro Getting Annoyed by Zenitsu When He Asks a Random Girl To Marry Him
In Demon Slayer, Zenitsu always complains, cries, and panics, which often annoys Tanjiro. One of the funniest moments happens when Zenitsu loudly begs a girl to marry him right after being saved from a demon. Tanjiro, frustrated, grabs Zenitsu by the collar and shakes him because he can’t handle his dramatic behavior. Another funny moment is when Zenitsu clings to Tanjiro, crying in fear, while Tanjiro struggles to push him away.
Tanjiro is usually calm and kind, but Zenitsu’s nonstop whining makes him lose his patience. Seeing Tanjiro get annoyed while Zenitsu acts dramatic makes their friendship even more entertaining. Their interactions are full of funny moments, making them one of the most hilarious duos in Demon Slayer.
3. Tanjiro, Inosuke and Zenitsu Becoming Girls in Entertainment District Arc
During the Entertainment District Arc, Tengen Uzui takes Tanjiro, Inosuke, and Zenitsu on a mission where they must dress up as girls to enter courtesan houses. They wear makeup and wigs, with Tanjiro becoming “Sumiko,” Inosuke becoming “Inoko,” and Zenitsu becoming “Zenko.” Tanjiro and Inosuke quickly get accepted into different houses, but Zenitsu is rejected because of his loud voice and bad disguise. He is left behind, feeling embarrassed and angry. To make things worse, Uzui tells him to “try harder,” which only makes Zenitsu even more frustrated.
Zenitsu is already unhappy about the mission, and being the only one rejected makes him feel even worse. His anger at Uzui and his dramatic reaction make the scene even funnier. While Tanjiro and Inosuke fit in easily, Zenitsu completely fails, making this a classic funny moment in Demon Slayer.
2. Nezuko Calling Zenitsu “Inosuke”
During the Hashira Training Arc, Zenitsu is excited to talk to Nezuko, hoping to impress her. However, when Nezuko finally speaks, she accidentally calls him “Inosuke” instead of his real name. Zenitsu is completely heartbroken, devastated that Nezuko doesn’t even remember his name. Meanwhile, Inosuke, who is nearby, is thrilled and proudly accepts the mistake, making Zenitsu even more frustrated.
Zenitsu who is always trying to win Nezuko’s attention, yet she mistakes him for Inosuke. His dramatic reaction, along with Inosuke’s happiness, makes the scene even more hilarious. Zenitsu’s endless love for Nezuko and his bad luck create some of the best comedy moments in Demon Slayer.
1. Inosuke Mispronouncing Tanjiro
One of the funniest jokes in Demon Slayer is how Inosuke always says people’s names wrong. Instead of calling Tanjiro by his real name, he makes up silly versions like “Gonpachiro Kamaboko,” “Tanpachiro,” and “Monjirou.” No matter how many times Tanjiro corrects him, Inosuke never gets it right. He also says other people’s names wrong, showing that he either doesn’t care or just enjoys teasing them.
Inosuke is so confident even when saying the wrong names makes it even more funnier. His wild personality makes it seem like he does it on purpose, while Tanjiro’s frustration makes it even funnier. Since this joke happens many times in the series, it has become one of Inosuke’s best and funniest habits.