And successfully, they managed to kill Muzan

Some pillars had died, Tanjiro almost died killing him...but they were able to do it

But, I didn't expect that something...unexpected would happen

As Tanjiro caught his breath, he heard a scream, but the scream sounded heartbreaking and he also heard crying

Tanjiro looked in the direction where he heard the scream, and...he was surprised by what he saw