Last chapter - Muichiro was the winner

Kanao vs Genya.

Nobody's pov

While Kanao and Genya were fighting they saw a huge mushroom cloud in the sky coming from the direction of Zenitsu and Muichiro and they heard what sounded like a victory scream but they ignored it and got back to fighting.

Kanao: just give up! I'm more stronger than you!

Genya: we'll see about that.

Genya lunged at Kanao about to attack her when suddenly Kanao disappeared and appeared right behind Genya about to swing her unsheathed sword while Genya pulled out his Gun and shot (the gun isn't filled with anything just something like nerf bullets so no one actually dies Nezuko made sure of it)

Kanao got shot and fell to the ground she still swung her sword but at Genyas ankles causing Genya to fall Kanao quickly shot up and brought her sword over to his neck.

Genya: Ok ok ok ok! You won...

Kanao smiled evilly as she put her sword back into its place.

Winner Kanao