Demon Slayer's breathing techniques being imaginary poses a huge problem to the series ahead of its movie trilogy release.

Demon Slayer is full of incredible scenes that have left fans unable to forget about it. A large part of that magic comes from the characters’ breathing styles.

Centuries before Tanjiro, Yoriichi Tsugikuni, the original Sun Breathing user ... and ultimately setting the stage for the events of Demon Slayer, including the tragic fate of Tanjiro's family.