My sleep...
His family all dead? Did the other pillars slow down from shock? Did blind man know this would happen? Is the dr.lady's assisstant going to be ok with her dying? Ah I'm gonna sleep...
I wouldn't be surprised if he's not the last boss, despite literally being the boss. It did seem like there were much more threatening demons left over, like the who one who could possibly be the original sun breath style user.
Of course Muzan still alive. I'm more concern about the drug. Is it really working? What if that drug didn't turn Muzan back to human but help him overcome the sun?
Before 137 I thought Ubuyashiki will die after Tanjirou become a pillar. After 137 I thought he may have some last words for Tanjirou and his children playing around just Tamayo's illusion. But nope, let kill him along with his wife and two daughters in an explosion! Based Gotouge!