Does Rengoku become a demon in the manga?

Yes, Rengoku does die in the manga.

No, Tanjiro doesn't become a demon in the manga. He remains a determined human fighting against demons.

No, Tanjiro doesn't become a demon in the manga. He remains a determined and righteous human fighting against demons.

Yes, Yukio does become a demon in the manga.

Yes, Ciel does become a demon in the manga.

Rengoku remains deceased in the manga. His character's fate is set, and there's no resurrection. It adds depth and gravity to the narrative.

Sure does! As the story progresses, Iruma fulfills the role of the demon king. It's a significant development that fans have been excited about. The plot builds up to this point with various challenges and growth for Iruma.

I think it's in 'Demon Slayer: Kimetsu no Yaiba' manga. But the circumstances around it are quite complex.

No, Rengoku is not alive in the manga. He tragically died during a battle.

The new Demon Slayer manga with Rengoku might introduce new storylines or character developments for him. It could expand on his background or show his adventures post previous arcs.