Tanjiro’s Demon Form Explained: When and How It Happens

Ever wondered what would happen if a hero became what they fought against? This almost happened in Demon Slayer. Let’s explore: does Tanjiro become a demon, and what if he stayed that way?

Tanjiro’s transformation teases a darker path—get to know his origins better in our Tanjiro Kamado character analysis.

When and How Tanjiro Becomes a Demon

Yes, Tanjiro does become a demon at some point. It happens in Chapter 201 of the manga. Muzan puts his blood into Tanjiro’s body before dying. This is how Tanjiro becomes a demon. Muzan picks Tanjiro because he is strong and determined.

In the real story, Tanjiro changes back quickly. His friends use special medicine. Kanao, Inosuke, and Zenitsu help him return to human form.

What If Tanjiro Stayed a Demon?

What if the medicine failed? What if Tanjiro couldn’t fight Muzan’s control? Let’s imagine this new path.

The New Demon King

Tanjiro would likely become stronger than Muzan. He was already strong as a human. With demon powers, he would be unstoppable. Chapter 203 shows some of his demon abilities. He heals fast and has great strength. With time, he might develop powers beyond Muzan’s.

His powers could rival the Upper Moons in Demon Slayer if this theory proves true.

Impact on Friends and Family

This change would hurt those close to Tanjiro:

• Nezuko: She just became human again. Now her brother is a demon. Would she join him or fight him?
• Giyu: The man who believed in Tanjiro would face a hard choice.
• Zenitsu and Inosuke: They would be torn between friendship and duty.

Tanjiro’s Demon Form Compared

How would demon Tanjiro compare to others?

Versus Nezuko: He would have Muzan’s powers plus his own fighting skills.

Versus Kokushibo: Tanjiro would have Muzan’s full power, not just a portion.

Versus Muzan: Tanjiro might be stronger due to his breathing techniques and combat knowledge.

A Darker Story

This ending would change the whole series. It would turn from hopeful to tragic. Evil would win in the end. Some new storylines could be:

• The remaining Slayers hunting demon Tanjiro
• Nezuko trying to save or stop her brother
• A deeper look at humanity within demons

Review: Would This Ending Be Better?

Rating: 7/10

Pros:

• More complex ending
• Potential for a sequel
• Shocking conclusion

Cons:

• Goes against Tanjiro’s character
• Loses the theme of hope
• Too dark for the series style

This ending would be surprising but would change the core message. Demon Slayer is about hope and staying human in dark times. Tanjiro becoming a demon would suggest evil wins.

Conclusion

Tanjiro does become a demon briefly in the original story. Exploring this “what if” shows us a darker version of Demon Slayer. This theory might shape future arcs, especially the anticipated Demon Slayer Infinity Castle arc.

Would you prefer this darker ending, or do you like Tanjiro’s real fate?

FAQs

1. Does Tanjiro become a demon in Demon Slayer?
   

   Yes, for some time at the end of the manga in Chapter 201.

2. How does Tanjiro become a demon?
   

   Muzan transfers his blood into Tanjiro during their final battle.

3. When does Tanjiro become a demon in the manga?
   

   In Chapter 201, after the final battle with Muzan.

4. Is Tanjiro stronger as a demon?
   

   Yes, potentially stronger than Muzan himself.

5. Can Tanjiro control himself as a demon?
   

   Not at first. Muzan tries to control him. Tanjiro fights this influence.

6. Who would win: Demon Tanjiro vs. Muzan?
   

   Likely Tanjiro. He has Muzan’s powers plus his own skills.