the popular manga and subsequent anime adaptation of Demon Slayer: Kimetsu no Yaiba It has positioned itself as one of the most popular and profitable franchises of the moment. To the point that the first film in the franchise is the highest grossing Japanese film of all time. The exceptional animation produced by the studio Ufotable, the very well built plot and phenomenal fight scenes were key elements for the franchise to be so successful around the world.
It is for this reason that in this article we will talk about 6 most commented and unresolved mysteries of Demon Slayer: Kimetsu no Yaiba. Despite the fact that the franchise is over, it is still a topic of conversation.

1. What sense did the twelve demonic moons make if they were eliminated so quickly?
One of the main antagonist organizations of the anime are the Twelve Kizuki, also known as the demonic moons. They are divided into Upper Moons (higher) and Lower Moons (lower). Although the Upper Moons, like akaza, , dressage and Kokushibo, receive deep narrative treatment, Lower Moons They seem to have been introduced only to be quickly removed from the plot.
After the death of Rui, , MUZAN Eliminate almost all Lower Moons except to enmu. Enmu briefly appears as the main villain in the film Mugen Train. This decision by the main antagonist left many wondering. Why create such a broad hierarchy if more than half of the characters have no real development or weight in the story?

2. Did Tanjiro transmit his breathing techniques to his descendants?
In the final chapter of the manga, it is presented to Sumihiko Kamado and Kanata, descendants of Tanjiro and Kanao, who live in modern Japan. Although it is comforting to see them in a world without demons, and without having to risk their life, a great doubt arises. Are breathing techniques preserved? that were once key to human survival?
in the anime Demon Slayer: Kimetsu no Yaiba, the breathing techniques They are taught from generation to generation. However, after the disappearance of the demons, did it make sense to continue with this legacy? The manga does not offer a concrete answer on this subject, leaving open the possibility of future stories or spin-offs that explore this evolution.

3. Why was Tanjiro’s generation that defeated Muzan?
For centuries, the Demon King Muzan Kibutsuji He remained undefeated, defeating every enemy with ease. Even Hashiras legendary like Yorichi Tsugikuni They only managed to hurt him without being able to kill him. So what did the generation of Tanjiro to achieve victory?
Although his personal motivation (the death of his family and the transformation of human to the Nezuko) pushed him beyond the limit, this doesn’t fully explain why previous generations with powerful warriors couldn’t end up with MUZAN. Was it fate? Or a number of accumulated strategic factors?
4. Why can Nezuko walk in the sun?
One of the most impressive moments of Demon Slayer: Kimetsu no Yaiba is when Nezuko Kamado, turned into a demon from the beginning, proves to be immune to sunlight. This detail goes against one of the strongest rules within the franchise universe. Demons cannot be exposed to the sun Without dying.
The story never offers a scientific or magical explanation that satisfies the curiosity of fans. Some users on social networks theorized that it could be related to the sun breathing technique (Hinokami Kagura) or with its resistance to human blood consumption. However, the original manga does not confirm it, leaving this mystery as one of the most debated among followers.

5. How exactly do Blood Demon Arts work?
The Blood Demon Arts They are unique supernatural techniques used by the most powerful demons. They allow from complex illusions to elementary manipulations such as ice, fire or electricity.
Unlike the techniques of Breathing, which have a physical basis (breath control and concentration), the Blood Demon Arts They lack a detailed explanation. It is known that a demon acquires them after consuming enough humans. However, the mechanism or the internal logic of its operation is not clear.
This narrative emptiness contrasts with the precision with which the powers of the Demon Slayer: Kimetsu no Yaiba. Which leaves many fans wanting a deeper exploration of this aspect.
6. What happened between the defeat of Muzan and the modern era?
One of the biggest time jumps in the manga occurs between the defeat of MUZAN (During the period Taisho) and the introduction of the descendants in the current contemporary era. More than 100 years of history remain unexplored. What happened to the survivors? How was the Demon Hunters Corps dissolved? What legacy did the heroes leave?
This emptiness has provoked multiple theories and expectations among readers. Many want a spin-off that explores the life of Tanjiro, , Kanao, , Zenitsu and Nezuko in an era of peace. Even a slice-of-life style series could offer a deeper emotional closure for these characters.
Although the manga Demon Slayer: Kimetsu no Yaiba It concluded its main story satisfactorily, still Many mysteries remain unsolved. These could be addressed in future spin-offs, whether through anime, manga, light novels, or even video games. These loose ends not only keep the interest alive among fans, but also fuel the expectation for more content within the universe of Kimetsu no Yaiba.