In a surprising turn of events, leaked emails have surfaced, revealing that Demon Slayer ‘s ending was initially much darker than what fans saw on screen. Early concepts for the series suggested that the original storyline would have aligned more closely with the darker, more tragic elements that defined the early chapters. These leaked details have raised questions about what could have been if the series had maintained its original tone.
The emails suggest that the finale was initially planned to be far more somber, with greater sacrifices and a more bleak resolution for Tanjiro and his companions. While Demon Slayer eventually evolved into the action-packed, emotionally charged series it is today, the leaked information indicates that the creators considered an ending that would have left fans with a much heavier sense of loss.
The Shift from Darkness to Hope

Demon Slayer Season 4 (Credits: Ufotable)
One of the most significant changes from the early plans was the shift from a dark, almost nihilistic tone to a more hopeful conclusion. In the original concept, Tanjiro’s journey was going to end in a way that would have pushed the limits of tragedy and sacrifice, reflecting the harsh world he inhabited. However, as the series evolved, the creators opted to focus on themes of perseverance and hope, ultimately softening the impact of the conclusion. This pivot likely came from fan feedback and editorial influence, as Demon Slayer ‘s massive success required a more accessible ending for a broad audience.
The emails also hinted at a far darker fate for some major characters, with Tanjiro potentially succumbing to the demon curse, which would have marked an even more tragic end to his arc. This alternative storyline would have kept with the series’ early exploration of despair and survival, but the final changes moved away from this grim path to leave fans with a more uplifting outcome.
Why the Darker Ending Was Rejected

Demon Slayer Season 5 (Credits: Ufotable)
While fans are intrigued by the idea of a darker Demon Slayer , there were reasons for moving away from such an ending. Early on, the series carried a tone of profound loss and brutality, but as the narrative progressed, it started to emphasize Tanjiro’s determination to protect his friends and family. The decision to shift towards a more hopeful conclusion likely stemmed from a desire to balance the darkness with uplifting moments, ensuring that the anime’s broader message of hope was more apparent.
Ultimately, the shift in direction helped Demon Slayer become the phenomenon it is today, with its positive, heroic moments resonating with a global audience. Yet, the leaked emails offer a glimpse into what could have been—an ending that would have been much more heartbreaking but perhaps fitting for the darker elements that Demon Slayer initially explored.

Set during Japan’s Taishō era, Demon Slayer follows Tanjiro Kamado, whose family is killed by demons and whose sister Nezuko becomes one. To avenge his family and find a cure, Tanjiro joins the Demon Slayer Corps alongside allies Zenitsu and Inosuke, battling demons with unique “Breathing”-based swordsmanship. The series intensifies through televised seasons and films like Mugen Train, adapting arcs through Swordsmith Village and Hashira Training, leading up to the final Infinity Castle arc.
A Chainsaw Man cosplayer was recently detained at an airport after security officials mistakenly identified their chainsaw prop as a real weapon. The lifelike design of the prop, meant to mimic the weapon used by the series’ main character, led to confusion. This misunderstanding resulted in the cosplayer being held for questioning, even though the prop was clearly for cosplay purposes.
This incident highlights a common problem faced by cosplayers when traveling with realistic props. While props are an essential part of many costumes, their resemblance to real-world objects can sometimes cause problems at security checkpoints. Cosplayers are increasingly advised to be proactive by declaring their props and ensuring that they are safely transported to avoid such issues in the future.
How to Avoid Airport Cosplay Problems

Chainsaw Man (Credits: Jump Comics)
When traveling with cosplay props, it’s crucial to communicate clearly with airport security. Declaring props in advance and explaining that they are for costume use only can help avoid confusion. Some experts also suggest that cosplayers provide documentation or photos of their costumes to clarify their purpose.
Being transparent with airport staff can ensure smoother travel experiences and prevent unnecessary delays. This is especially important when traveling with larger or more intricate props, which can resemble real weapons from a distance.
Safe and Realistic Prop Creation Tips

Chainsaw Man – The Movie: Reze Arc
Cosplayers should also consider using lightweight, non-functional materials for their props. For instance, using foam, plastic, or other safe materials can help create realistic-looking props that aren’t mistaken for actual weapons. Many cosplayers also opt for detachable parts that make it easier to transport their costumes safely. Properly labeling props as “costume use only” may also help reduce confusion with security personnel.
With the growing popularity of cosplay worldwide, it’s essential for the cosplay community to be mindful of how their props are perceived during travel. Taking precautions and ensuring clear communication with security can help keep everyone safe and ensure a smooth journey.